how to do bibliography in research paper

How to Write a Bibliography for a Research Paper

Do not try to “wow” your instructor with a long bibliography when your instructor requests only a works cited page. It is tempting, after doing a lot of work to research a paper, to try to include summaries on each source as you write your paper so that your instructor appreciates how much work you did. That is a trap you want to avoid. MLA style, the one that is most commonly followed in high schools and university writing courses, dictates that you include only the works you actually cited in your paper—not all those that you used.

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• If your assignment calls for a bibliography, list all the sources you consulted in your research.
• If your assignment calls for a works cited or references page, include only the sources you quote, summarize, paraphrase, or mention in your paper.
• If your works cited page includes a source that you did not cite in your paper, delete it.
• All in-text citations that you used at the end of quotations, summaries, and paraphrases to credit others for their ideas,words, and work must be accompanied by a cited reference in the bibliography or works cited. These references must include specific information about the source so that your readers can identify precisely where the information came from.The citation entries on a works cited page typically include the author’s name, the name of the article, the name of the publication, the name of the publisher (for books), where it was published (for books), and when it was published.

The good news is that you do not have to memorize all the many ways the works cited entries should be written. Numerous helpful style guides are available to show you the information that should be included, in what order it should appear, and how to format it. The format often differs according to the style guide you are using. The Modern Language Association (MLA) follows a particular style that is a bit different from APA (American Psychological Association) style, and both are somewhat different from the Chicago Manual of Style (CMS). Always ask your teacher which style you should use.

A bibliography usually appears at the end of a paper on its own separate page. All bibliography entries—books, periodicals, Web sites, and nontext sources such radio broadcasts—are listed together in alphabetical order. Books and articles are alphabetized by the author’s last name.

Most teachers suggest that you follow a standard style for listing different types of sources. If your teacher asks you to use a different form, however, follow his or her instructions. Take pride in your bibliography. It represents some of the most important work you’ve done for your research paper—and using proper form shows that you are a serious and careful researcher.

Bibliography Entry for a Book

A bibliography entry for a book begins with the author’s name, which is written in this order: last name, comma, first name, period. After the author’s name comes the title of the book. If you are handwriting your bibliography, underline each title. If you are working on a computer, put the book title in italicized type. Be sure to capitalize the words in the title correctly, exactly as they are written in the book itself. Following the title is the city where the book was published, followed by a colon, the name of the publisher, a comma, the date published, and a period. Here is an example:

Format : Author’s last name, first name. Book Title. Place of publication: publisher, date of publication.

• A book with one author : Hartz, Paula.  Abortion: A Doctor’s Perspective, a Woman’s Dilemma . New York: Donald I. Fine, Inc., 1992.
• A book with two or more authors : Landis, Jean M. and Rita J. Simon.  Intelligence: Nature or Nurture?  New York: HarperCollins, 1998.

Bibliography Entry for a Periodical

A bibliography entry for a periodical differs slightly in form from a bibliography entry for a book. For a magazine article, start with the author’s last name first, followed by a comma, then the first name and a period. Next, write the title of the article in quotation marks, and include a period (or other closing punctuation) inside the closing quotation mark. The title of the magazine is next, underlined or in italic type, depending on whether you are handwriting or using a computer, followed by a period. The date and year, followed by a colon and the pages on which the article appeared, come last. Here is an example:

Format:  Author’s last name, first name. “Title of the Article.” Magazine. Month and year of publication: page numbers.

• Article in a monthly magazine : Crowley, J.E.,T.E. Levitan and R.P. Quinn.“Seven Deadly Half-Truths About Women.”  Psychology Today  March 1978: 94–106.
• Article in a weekly magazine : Schwartz, Felice N.“Management,Women, and the New Facts of Life.”  Newsweek  20 July 2006: 21–22.
• Signed newspaper article : Ferraro, Susan. “In-law and Order: Finding Relative Calm.”  The Daily News  30 June 1998: 73.
• Unsigned newspaper article : “Beanie Babies May Be a Rotten Nest Egg.”  Chicago Tribune  21 June 2004: 12.

Bibliography Entry for a Web Site

For sources such as Web sites include the information a reader needs to find the source or to know where and when you found it. Always begin with the last name of the author, broadcaster, person you interviewed, and so on. Here is an example of a bibliography for a Web site:

Format : Author.“Document Title.” Publication or Web site title. Date of publication. Date of access.

Example : Dodman, Dr. Nicholas. “Dog-Human Communication.”  Pet Place . 10 November 2006.  23 January 2014 < http://www.petplace.com/dogs/dog-human-communication-2/page1.aspx >

After completing the bibliography you can breathe a huge sigh of relief and pat yourself on the back. You probably plan to turn in your work in printed or handwritten form, but you also may be making an oral presentation. However you plan to present your paper, do your best to show it in its best light. You’ve put a great deal of work and thought into this assignment, so you want your paper to look and sound its best. You’ve completed your research paper!

Back to  How To Write A Research Paper .

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• Citing sources

How to Cite Sources | Citation Generator & Quick Guide

Citing your sources is essential in  academic writing . Whenever you quote or paraphrase a source (such as a book, article, or webpage), you have to include a  citation crediting the original author.

Failing to properly cite your sources counts as plagiarism , since you’re presenting someone else’s ideas as if they were your own.

The most commonly used citation styles are APA and MLA. The free Scribbr Citation Generator is the quickest way to cite sources in these styles. Simply enter the URL, DOI, or title, and we’ll generate an accurate, correctly formatted citation.

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Table of contents

When do you need to cite sources, which citation style should you use, in-text citations, reference lists and bibliographies.

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Other useful citation tools

Citation examples and full guides, frequently asked questions about citing sources.

Citations are required in all types of academic texts. They are needed for several reasons:

• To avoid plagiarism by indicating when you’re taking information from another source
• To give proper credit to the author of that source
• To allow the reader to consult your sources for themselves

A citation is needed whenever you integrate a source into your writing. This usually means quoting or paraphrasing:

• To quote a source , copy a short piece of text word for word and put it inside quotation marks .
• To paraphrase a source , put the text into your own words. It’s important that the paraphrase is not too close to the original wording. You can use the paraphrasing tool if you don’t want to do this manually.

Citations are needed whether you quote or paraphrase, and whatever type of source you use. As well as citing scholarly sources like books and journal articles, don’t forget to include citations for any other sources you use for ideas, examples, or evidence. That includes websites, YouTube videos , and lectures .

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Usually, your institution (or the journal you’re submitting to) will require you to follow a specific citation style, so check your guidelines or ask your instructor.

In some cases, you may have to choose a citation style for yourself. Make sure to pick one style and use it consistently:

• APA Style is widely used in the social sciences and beyond.
• MLA style is common in the humanities.
• Chicago notes and bibliography , common in the humanities
• Chicago author-date , used in the (social) sciences
• There are many other citation styles for different disciplines.

If in doubt, check with your instructor or read other papers from your field of study to see what style they follow.

In most styles, your citations consist of:

• Brief in-text citations at the relevant points in the text
• A reference list or bibliography containing full information on all the sources you’ve cited

In-text citations most commonly take the form of parenthetical citations featuring the last name of the source’s author and its year of publication (aka author-date citations).

An alternative to this type of in-text citation is the system used in numerical citation styles , where a number is inserted into the text, corresponding to an entry in a numbered reference list.

There are also note citation styles , where you place your citations in either footnotes or endnotes . Since they’re not embedded in the text itself, these citations can provide more detail and sometimes aren’t accompanied by a full reference list or bibliography.

A reference list (aka “Bibliography” or “Works Cited,” depending on the style) is where you provide full information on each of the sources you’ve cited in the text. It appears at the end of your paper, usually with a hanging indent applied to each entry.

The information included in reference entries is broadly similar, whatever citation style you’re using. For each source, you’ll typically include the:

• Author name
• Publication date
• Container (e.g., the book an essay was published in, the journal an article appeared in)
• Location (e.g., a URL or DOI , or sometimes a physical location)

The exact information included varies depending on the source type and the citation style. The order in which the information appears, and how you format it (e.g., capitalization, use of italics) also varies.

Most commonly, the entries in your reference list are alphabetized by author name. This allows the reader to easily find the relevant entry based on the author name in your in-text citation.

In numerical citation styles, the entries in your reference list are numbered, usually based on the order in which you cite them. The reader finds the right entry based on the number that appears in the text.

Because each style has many small differences regarding things like italicization, capitalization , and punctuation , it can be difficult to get every detail right. Using a citation generator can save you a lot of time and effort.

Scribbr offers citation generators for both APA and MLA style. Both are quick, easy to use, and 100% free, with no ads and no registration required.

Just input a URL or DOI or add the source details manually, and the generator will automatically produce an in-text citation and reference entry in the correct format. You can save your reference list as you go and download it when you’re done, and even add annotations for an annotated bibliography .

Once you’ve prepared your citations, you might still be unsure if they’re correct and if you’ve used them appropriately in your text. This is where Scribbr’s other citation tools and services may come in handy:

Plagiarism Checker

Citation Checker

Citation Editing

Plagiarism means passing off someone else’s words or ideas as your own. It’s a serious offense in academia. Universities use plagiarism checking software to scan your paper and identify any similarities to other texts.

When you’re dealing with a lot of sources, it’s easy to make mistakes that could constitute accidental plagiarism. For example, you might forget to add a citation after a quote, or paraphrase a source in a way that’s too close to the original text.

Using a plagiarism checker yourself before you submit your work can help you spot these mistakes before they get you in trouble. Based on the results, you can add any missing citations and rephrase your text where necessary.

Try out the Scribbr Plagiarism Checker for free, or check out our detailed comparison of the best plagiarism checkers available online.

Scribbr Plagiarism Checker

Scribbr’s Citation Checker is a unique AI-powered tool that automatically detects stylistic errors and inconsistencies in your in-text citations. It also suggests a correction for every mistake.

Currently available for APA Style, this is the fastest and easiest way to make sure you’ve formatted your citations correctly. You can try out the tool for free below.

If you need extra help with your reference list, we also offer a more in-depth Citation Editing Service.

Our experts cross-check your in-text citations and reference entries, make sure you’ve included the correct information for each source, and improve the formatting of your reference page.

If you want to handle your citations yourself, Scribbr’s free Knowledge Base provides clear, accurate guidance on every aspect of citation. You can see citation examples for a variety of common source types below:

And you can check out our comprehensive guides to the most popular citation styles:

At college level, you must properly cite your sources in all essays , research papers , and other academic texts (except exams and in-class exercises).

Add a citation whenever you quote , paraphrase , or summarize information or ideas from a source. You should also give full source details in a bibliography or reference list at the end of your text.

The exact format of your citations depends on which citation style you are instructed to use. The most common styles are APA , MLA , and Chicago .

The abbreviation “ et al. ” (Latin for “and others”) is used to shorten citations of sources with multiple authors.

“Et al.” is used in APA in-text citations of sources with 3+ authors, e.g. (Smith et al., 2019). It is not used in APA reference entries .

Use “et al.” for 3+ authors in MLA in-text citations and Works Cited entries.

Use “et al.” for 4+ authors in a Chicago in-text citation , and for 10+ authors in a Chicago bibliography entry.

The Scribbr Citation Generator is developed using the open-source Citation Style Language (CSL) project and Frank Bennett’s citeproc-js . It’s the same technology used by dozens of other popular citation tools, including Mendeley and Zotero.

You can find all the citation styles and locales used in the Scribbr Citation Generator in our publicly accessible repository on Github .

APA format is widely used by professionals, researchers, and students in the social and behavioral sciences, including fields like education, psychology, and business.

Be sure to check the guidelines of your university or the journal you want to be published in to double-check which style you should be using.

MLA Style  is the second most used citation style (after APA ). It is mainly used by students and researchers in humanities fields such as literature, languages, and philosophy.

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• Harvard Style Bibliography | Format & Examples

Harvard Style Bibliography | Format & Examples

Published on 1 May 2020 by Jack Caulfield . Revised on 7 November 2022.

In Harvard style , the bibliography or reference list provides full references for the sources you used in your writing.

• A reference list consists of entries corresponding to your in-text citations .
• A bibliography sometimes also lists sources that you consulted for background research, but did not cite in your text.

The two terms are sometimes used interchangeably. If in doubt about which to include, check with your instructor or department.

The information you include in a reference varies depending on the type of source, but it usually includes the author, date, and title of the work, followed by details of where it was published. You can automatically generate accurate references using our free reference generator:

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Formatting a harvard style bibliography, harvard reference examples, referencing sources with multiple authors, referencing sources with missing information, frequently asked questions about harvard bibliographies.

Sources are alphabetised by author last name. The heading ‘Reference list’ or ‘Bibliography’ appears at the top.

Each new source appears on a new line, and when an entry for a single source extends onto a second line, a hanging indent is used:

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Reference list or bibliography entries always start with the author’s last name and initial, the publication date and the title of the source. The other information required varies depending on the source type. Formats and examples for the most common source types are given below.

• Entire book
• Book chapter
• Translated book
• Edition of a book

Journal articles

• Print journal
• Online-only journal with DOI
• Online-only journal without DOI

• General web page
• Online article or blog
• Social media post

Newspapers and magazines

• Newspaper article
• Magazine article

When a source has up to three authors, list all of them in the order their names appear on the source. If there are four or more, give only the first name followed by ‘ et al. ’:

Sometimes a source won’t list all the information you need for your reference. Here’s what to do when you don’t know the publication date or author of a source.

Some online sources, as well as historical documents, may lack a clear publication date. In these cases, you can replace the date in the reference list entry with the words ‘no date’. With online sources, you still include an access date at the end:

When a source doesn’t list an author, you can often list a corporate source as an author instead, as with ‘Scribbr’ in the above example. When that’s not possible, begin the entry with the title instead of the author:

Though the terms are sometimes used interchangeably, there is a difference in meaning:

• A reference list only includes sources cited in the text – every entry corresponds to an in-text citation .
• A bibliography also includes other sources which were consulted during the research but not cited.

In Harvard referencing, up to three author names are included in an in-text citation or reference list entry. When there are four or more authors, include only the first, followed by ‘ et al. ’

In Harvard style referencing , to distinguish between two sources by the same author that were published in the same year, you add a different letter after the year for each source:

• (Smith, 2019a)
• (Smith, 2019b)

Add ‘a’ to the first one you cite, ‘b’ to the second, and so on. Do the same in your bibliography or reference list .

To create a hanging indent for your bibliography or reference list :

• Highlight all the entries
• Click on the arrow in the bottom-right corner of the ‘Paragraph’ tab in the top menu.
• In the pop-up window, under ‘Special’ in the ‘Indentation’ section, use the drop-down menu to select ‘Hanging’.
• Then close the window with ‘OK’.

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If you want to cite this source, you can copy and paste the citation or click the ‘Cite this Scribbr article’ button to automatically add the citation to our free Reference Generator.

Caulfield, J. (2022, November 07). Harvard Style Bibliography | Format & Examples. Scribbr. Retrieved 9 June 2024, from https://www.scribbr.co.uk/referencing/harvard-bibliography/

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How To Write a Bibliography (Plus Printable Guide With Examples)

Give credit where credit is due.

Writing a research paper involves a lot of work. Students need to consult a variety of sources to gather reliable information and ensure their points are well supported. Research papers include a bibliography, which can be a little tricky for students. Learn how to write a bibliography in multiple styles and find basic examples below.

Plus grab our printable Bibliography Guide for Students with examples from all three major style guides: APA (American Psychological Association), MLA (Modern Language Association), or The Chicago Manual of Style . Just fill out the form on this page to get the free guide.

IMPORTANT: Each style guide has its own very specific rules, and they often conflict with one another. Additionally, each type of reference material has many possible formats, depending on a variety of factors. The overviews shown here are meant to guide students in writing basic bibliographies, but this information is by no means complete. Students should always refer directly to the preferred style guide to ensure they’re using the most up-to-date formats and styles.

What is a bibliography?

When you’re researching a paper, you’ll likely consult a wide variety of sources. You may quote some of these directly in your work, summarize some of the points they make, or simply use them to further the knowledge you need to write your paper. Since these ideas are not your own, it’s vital to give credit to the authors who originally wrote them. This list of sources, organized alphabetically, is called a bibliography.

A bibliography should include all the materials you consulted in your research, even if you don’t quote directly from them in your paper. These resources could include (but aren’t limited to):

• Books and e-books
• Periodicals like magazines or newspapers
• Online articles or websites
• Primary source documents like letters or official records

Bibliography vs. References

These two terms are sometimes used interchangeably, but they actually have different meanings. As noted above, a bibliography includes all the materials you used while researching your paper, whether or not you quote from them or refer to them directly in your writing.

A list of references only includes the materials you cite throughout your work. You might use direct quotes or summarize the information for the reader. Either way, you must ensure you give credit to the original author or document. This section can be titled “List of Works Cited” or simply “References.”

Your teacher may specify whether you should include a bibliography or a reference list. If they don’t, consider choosing a bibliography to show all the works you used in researching your paper. This can help the reader see that your points are well supported and allow them to do further reading on their own if they’re interested.

Bibliography vs. Citations

Citations refer to direct quotations from a text that are woven into your own writing. There are a variety of ways to write citations, including footnotes and endnotes. These are generally shorter than the entries in a reference list or bibliography. Learn more about writing citations here.

What does a bibliography entry include?

Depending on the reference material, bibliography entries include a variety of information intended to help a reader locate the material if they want to refer to it themselves. These entries are listed in alphabetical order and may include:

• Author/s or creator/s
• Publication date
• Volume and issue numbers
• Publisher and publication city
• Website URL

These entries don’t generally need to include specific page numbers or locations within the work (except for print magazine or journal articles). That type of information is usually only needed in a footnote or endnote citation.

What are the different bibliography styles?

In most cases, writers use one of three major style guides: APA (American Psychological Association), MLA (Modern Language Association), or The Chicago Manual of Style . There are many others as well, but these three are the most common choices for K–12 students.

Many teachers will state their preference for one style guide over another. If they don’t, you can choose your own preferred style. However, you should also use that guide for your entire paper, following their recommendations for punctuation, grammar, and more. This will ensure you are consistent throughout.

Below, you’ll learn how to write a simple bibliography using each of the three major style guides. We’ve included details for books and e-books, periodicals, and electronic sources like websites and videos. If the reference material type you need to include isn’t shown here, refer directly to the style guide you’re using.

APA Style Bibliography and Examples

Technically, APA style calls for a list of references instead of a bibliography. If your teacher requires you to use the APA style guide , you can limit your reference list to only items you cite throughout your work.

How To Write a Bibliography (References) Using APA Style

Here are some general notes on writing an APA reference list:

• Title your bibliography section “References” and center the title on the top line of the page.
• Do not center your references; they should be left-aligned. For longer items, subsequent lines should use a hanging indent of 1/2 inch.
• Include all types of resources in the same list.
• Alphabetize your list by author or creator, last name first.
• Do not spell out the author/creator’s first or middle name—only use their initials.
• If there are multiple authors/creators, use an ampersand (&) before the final author/creator.
• Place the date in parentheses.
• Capitalize only the first word of the title and subtitle, unless the word would otherwise be capitalized (proper names, etc.).
• Italicize the titles of books, periodicals, and videos.
• For websites, include the full site information, including the http:// or https:// at the beginning.

Books and E-Books APA Bibliography Examples

For books, APA reference list entries use this format (only include the publisher’s website for e-books):

Last Name, First Initial. Middle Initial. (Publication date). Title with only first word capitalized (unless there’s a proper name/noun) . Publisher. Publisher’s website

• Wynn, S. (2020). City of London at war 1939–45 . Pen & Sword Military. https://www.pen-and-sword.co.uk/City-of-London-at-War-193945-Paperback/p/17299

Periodical APA Bibliography Examples

For journal or magazine articles, use the following format. If you viewed the article online, include the URL at the end of the citation.

Last Name, First Initial. Middle Initial. (Publication date). Title of article. Magazine or Journal Title (Volume number) Issue number, page numbers. URL

• Bell, A. (2009). Landscapes of fear: Wartime London, 1939–1945. Journal of British Studies (48) 1, 153–175. https://www.jstor.org/stable/25482966

Here’s the format for newspapers. For print editions, include the page number/s. For online articles, include the full URL:

Last Name, First Initial. Middle Initial. (Year, Month Date) Title of article. Newspaper title. Page number/s. URL

• Blakemore, E. (2022, November 12) Researchers track down two copies of fossil destroyed by the Nazis.  The Washington Post. https://www.washingtonpost.com/science/2022/11/12/ichthyosaur-fossil-images-discovered/

Electronic APA Bibliography Examples

For articles with a specific author on a website, use this format:

Last Name, First Initial. Middle Initial. (Year, Month Date). Title . Site name. URL

• Wukovits, J. (2023, January 30). A World War II survivor recalls the London Blitz . British Heritage . https://britishheritage.com/history/world-war-ii-survivor-london-blitz

When an online article doesn’t include a specific author or date, list it like this:

Title . (Year, Month Date). Site name. Retrieved Month Date, Year, from URL

• Growing up in the Second World War . (n.d.). Imperial War Museums. Retrieved May 12, 2023, from https://www.iwm.org.uk/history/growing-up-in-the-second-world-war

When you need to list a YouTube video, use the name of the account that uploaded the video, and format it like this:

Name of Account. (Upload year, month day). Title [Video]. YouTube. URL

• War Stories. (2023, January 15). How did London survive the Blitz during WW2? Cities at war: London [Video]. YouTube. https://youtu.be/uwY6JlCvbxc

For more information on writing APA bibliographies, see the APA Style Guide website.

APA Bibliography (Reference List) Example Pages

MLA Style Bibliography Examples

MLA style calls for a Works Cited section, which includes all materials quoted or referred to in your paper. You may also include a Works Consulted section, including other reference sources you reviewed but didn’t directly cite. Together, these constitute a bibliography. If your teacher requests an MLA Style Guide bibliography, ask if you should include Works Consulted as well as Works Cited.

How To Write a Bibliography (Works Cited and Works Consulted) in MLA Style

For both MLA Works Cited and Works Consulted sections, use these general guidelines:

• Start your Works Cited list on a new page. If you include a Works Consulted list, start that on its own new page after the Works Cited section.
• Center the title (Works Cited or Works Consulted) in the middle of the line at the top of the page.
• Align the start of each source to the left margin, and use a hanging indent (1/2 inch) for the following lines of each source.
• Alphabetize your sources using the first word of the citation, usually the author’s last name.
• Include the author’s full name as listed, last name first.
• Capitalize titles using the standard MLA format.
• Leave off the http:// or https:// at the beginning of a URL.

Books and E-Books MLA Bibliography Examples

For books, MLA reference list entries use the following format. Add the URL at the end for e-books.

Last Name, First Name Middle Name. Title . Publisher, Date. URL

• Wynn, Stephen. City of London at War 1939–45 . Pen & Sword Military, 2020. www.pen-and-sword.co.uk/City-of-London-at-War-193945-Paperback/p/17299

Periodical MLA Bibliography Examples

Here’s the MLA-style format for magazines, journals, and newspapers. For online articles, add the URL at the end of the listing:

For magazines and journals:

Last Name, First Name. “Title: Subtitle.” Name of Journal , volume number, issue number, Date of Publication, First Page Number–Last Page Number.

• Bell, Amy. “Landscapes of Fear: Wartime London, 1939–1945.” Journal of British Studies , vol. 48, no. 1, January 2009, pp. 153–175. www.jstor.org/stable/25482966

When citing newspapers, include the page number/s for print editions or the URL for online articles:

Last Name, First Name. “Title of article.” Newspaper title. Page number/s. Year, month day. Page number or URL

• Blakemore, Erin. “Researchers Track Down Two Copies of Fossil Destroyed by the Nazis.” The Washington Post. 2022, Nov. 12. www.washingtonpost.com/science/2022/11/12/ichthyosaur-fossil-images-discovered/

Electronic MLA Bibliography Examples

Last Name, First Name. Year. “Title.” Month Day, Year published. URL

• Wukovits, John. 2023. “A World War II Survivor Recalls the London Blitz.” January 30,   2023. https://britishheritage.com/history/world-war-ii-survivor-london-blitz

Website. n.d. “Title.” Accessed Day Month Year. URL.

• Imperial War Museum. n.d. “Growing Up in the Second World War.” Accessed May 9, 2023. www.iwm.org.uk/history/growing-up-in-the-second-world-war.

Here’s how to list YouTube and other online videos:

Creator, if available. “Title of Video.” Website. Uploaded by Username, Day Month Year. URL.

• “How did London survive the Blitz during WW2?” Cities at war: London | War stories.” YouTube . Uploaded by War Stories, 15 Jan. 2023. youtu.be/uwY6JlCvbxc.

For more information on writing MLA-style bibliographies, see the MLA Style website.

MLA Bibliography (Works Cited) Example Pages

Chicago Manual of Style Bibliography Examples

The Chicago Manual of Style (sometimes called “Turabian”) actually has two options for citing reference material: Notes and Bibliography and Author-Date. Regardless of which you use, you’ll need a complete detailed list of reference items at the end of your paper. The examples below demonstrate how to write that list.

How To Write a Bibliography Using The Chicago Manual of Style

Here are some general notes on writing a Chicago -style bibliography:

• You may title it “Bibliography” or “References.” Center this title at the top of the page and add two blank lines before the first entry.
• Left-align each entry, with a hanging half-inch indent for subsequent lines of each entry.
• Single-space each entry, with a blank line between entries.
• Include the “http://” or “https://” at the beginning of URLs.

Books and E-Books Chicago Manual of Style Bibliography Examples

For books, Chicago -style reference list entries use the following format. (For print books, leave off the information about how the book was accessed.)

Last Name, First Name Middle Name. Title . City of Publication: Publisher, Date. How e-book was accessed.

• Wynn, Stephen. City of London at War 1939–45 . Yorkshire: Pen & Sword Military, 2020. Kindle edition.

Periodical Chicago Manual of Style Bibliography Examples

Here’s the style format for magazines, journals, and newspapers. For online articles, add the URL at the end of the listing.

For journal and magazine articles, use this format:

Last Name, First Name. Year of Publication. “Title: Subtitle.” Name of Journal , Volume Number, issue number, First Page Number–Last Page Number. URL.

• Bell, Amy. 2009. “Landscapes of Fear: Wartime London, 1939–1945.” Journal of British Studies, 48 no. 1, 153–175. https://www.jstor.org/stable/25482966.

When citing newspapers, include the URL for online articles:

Last Name, First Name. Year of Publication. “Title: Subtitle.” Name of Newspaper , Month day, year. URL.

• Blakemore, Erin. 2022. “Researchers Track Down Two Copies of Fossil Destroyed by the Nazis.” The Washington Post , November 12, 2022. https://www.washingtonpost.com/science/2022/11/12/ichthyosaur-fossil-images-discovered/.

Electronic Chicago Manual of Style Bibliography Examples

Last Name, First Name Middle Name. “Title.” Site Name . Year, Month Day. URL.

• Wukovits, John. “A World War II Survivor Recalls the London Blitz.” British Heritage. 2023, Jan. 30. britishheritage.com/history/world-war-ii-survivor-london-blitz.

“Title.” Site Name . URL. Accessed Month Day, Year.

• “Growing Up in the Second World War.” Imperial War Museums . www.iwm.org.uk/history/growing-up-in-the-second-world-war. Accessed May 9, 2023.

Creator or Username. “Title of Video.” Website video, length. Month Day, Year. URL.

• War Stories. “How Did London Survive the Blitz During WW2? | Cities at War: London | War Stories.” YouTube video, 51:25. January 15, 2023. https://youtu.be/uwY6JlCvbxc.

For more information on writing Chicago -style bibliographies, see the Chicago Manual of Style website.

Chicago Manual of Style Bibliography Example Pages

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Just fill out the form on this page to grab our printable Bibliography Guide for Students with examples from all three major style guides: APA (American Psychological Association), MLA (Modern Language Association), or The Chicago Manual of Style .

Now that you know how to write a bibliography, take a look at the Best Websites for Teaching & Learning Writing .

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How to Write a Bibliography (MLA, APA Examples)

Learn how to easily write a bibliography by following the format outlined in this article.

This resource will help your students properly cite different resources in the bibliography of a research paper, and how to format those citations, for books, encyclopedias, films, websites, and people.

What is a bibliography?

According to Infoplease.com, A bibliography is a list of the types of sources you used to get information for your report. It is included at the end of your report, on the last page (or last few pages).

What are the types of bibliography styles (MLA, APA, etc.)?

The 3 most common bibliography/citation styles are:

• MLA Style: The Modern Language Association works cited page style
• APA Style: The American Psychological Association style
• Chicago Style: The bibliography style defined by the Chicago Manual of Style

We’ll give examples of how to create bibliography entries in various styles further down in this article. 

What sources do you put in a bibliography?

An annotated bibliography should include a reference list of any sources you use in writing a research paper. Any printed sources from which you use a text citation, including books, websites, newspaper articles, journal articles, academic writing, online sources (such as PDFs), and magazines should be included in a reference list. In some cases, you may need or want to cite conversations or interviews, works of art, visual works such as movies, television shows, or documentaries - these (and many others) can also be included in a reference list.

How to get started writing your bibliography

You will find it easier to prepare your MLA, APA, or Chicago annotated bibliography if you keep track of each book, encyclopedia, journal article, webpage or online source you use as you are reading and taking notes. Start a preliminary, or draft, bibliography by listing on a separate sheet of paper all your sources. Note down the full title, author’s last name, place of publication, web address, publisher, and date of publication for each source.

Haven't started your paper yet and need an outline? These sample essay outlines include a research paper outline from an actual student paper.

How to write a bibliography step-by-step (with examples)

General Format: Author (last name first). Title of the book. Publisher, Date of publication.

MLA Style: Sibley, David Allen. What It’s Like to Be a Bird. From Flying to Nesting, Eating to Singing, What Birds Are Doing, and Why. Alfred A. Knopf, 2020.

APA Style: Sibley, D.A. (2020). What It’s Like to Be a Bird. From Flying to Nesting, Eating to Singing, What Birds Are Doing, and Why . Alfred A. Knopf.

Notes: Use periods, not commas, to separate the data in the entry. Use a hanging indent if the entry is longer than one line. For APA style, do not use the full author’s first name.

Websites or webpages:

  MLA Style: The SB Nation Family of Sites. Pension Plan Puppets: A Toronto Maple Leafs Blog, 2022, www.pensionplanpuppets.com. Accessed 15 Feb. 2022.

APA Style: American Heart Association. (2022, April 11). How to keep your dog’s heart healthy. https://www.heart.org/en/news/2022/04/11/how-to-keep-your-dogs-heart-healthy

Online news article from a newspaper site:

APA Style: Duehren, A. (2022, April 9). Janet Yellen faces challenge to keep pressure on Russia. Wall Street Journal. https://www.wsj.com/articles/janet-yellen-faces-challenge-to-keep-pressure-on-russia-while-addressing-global-consequences-11650366000

Print journal articles:

MLA Style: Booch, Grady. "Patterns in Object-Oriented Design." IEEE Software Engineering, vol. 6, no. 6, 2006, pp. 31-50.

APA Style: Booch, G. (2006). Patterns in object-oriented design. IEEE Software Engineering, 6(6), 31–50.

Note: It is suggested that you include a DOI and a webpage address when referencing either a printed journal article, and electronic journal article, or an journal article that appears in both formats. 

MLA Style: Gamma, Eric, and Peter A. Coad. “Exceptions to the Unified Modeling Language in Python Patterns.” IEEE Software Engineering, vol. 2, no. 6, 8 Mar. 2006, pp. 190-194. O’Reilly Software Engineering Library, https://doi.org/10.1006/se.20061. Accessed 26 May 2009.

APA Style: Masters, H., Barron, J., & Chanda, L. (2017). Motivational interviewing techniques for adolescent populations in substance abuse counseling. NAADAC Notes, 7(8), 7–13. https://www.naadac.com/notes/adolescent-techniques

ML:A Style: @Grady_Booch. “That’s a bold leap over plain old battery power cars.” Twitter, 13 Mar. 2013, 12:06 p.m., https://twitter.com/Grady_Booch/status/1516379006727188483.

APA Style: Westborough Library [@WestboroughLib]. (2022, April 12). Calling all 3rd through 5th grade kids! Join us for the Epic Writing Showdown! Winner receives a prize! Space is limited so register, today. loom.ly/ypaTG9Q [Tweet; thumbnail link to article]. Twitter. https://twitter.com/WestboroughLib/status/1516373550415896588.

Print magazine articles:

General format: Author (last name first), "Article Title." Name of magazine. Volume number, (Date): page numbers.

MLA Style: Stiteler, Sharon. "Tracking Red-Breasted Grosbeak Migration." Minnesota Bird Journal, 7 Sept. 2019, pp. 7-11.

APA Style: Jordan, Jennifer, "Filming at the Top of the World." Museum of Science Magazine. Volume 47, No. 1, (Winter 1998): p. 11.

Print newspaper articles:

General format: Author (last name first), "Article Title." Name of newspaper, city, state of publication. (date): edition if available, section, page number(s).

MLA Style: Adelman, Martin. "Augustus Announces Departure from City Manager Post." New York Times, late ed., 15 February 2020, p. A1

APA Style: Adelman, M. (2020, February 15). Augustus announced departure from city manager post. New York Times, A1.

Encyclopedias:

General Format: Encyclopedia Title, Edition Date. Volume Number, "Article Title," page numbers.

MLA Style: “Gorillas.” The Encyclopedia Brittanica. 15th ed. 2010.

APA Style: Encyclopedia Brittanica, Inc. (1997.) Gorillas. In The Encyclopedia Brittanica (15th ed., pp. 50-51). Encyclopedia Brittanica, Inc.

Personal interviews:

General format: Full name (last name first). Personal Interview. (Occupation.) Date of interview.

MLA Style: Smithfield, Joseph. Personal interview. 19 May 2014.

APA Style: APA does not require a formal citation for a personal interview. Published interviews from other sources should be cited accordingly.

Films and movies:

General format: Title, Director, Distributor, Year.

MLA Style: Fury. Directed by David Ayer, performances by Brad Pitt, Shia LaBeouf, Jon Bernthal, Sony Pictures, 2014.

APA Style: Ayer, D. (Director). (2014). Fury [Film]. Sony Pictures.

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Common Research Paper Bibliography Formats

Research papers take a lot of different steps to format your outline and discuss where your sources came from. Every paper ends with a citation page or bibliography. The type of bibliography formats you use depends on your research and subject matter.

Bibliography Uncovered

Before you can even get into the steps of creating your bibliography, you need to understand specifically what a bibliography is and the best style bibliography formats to use for your paper.

Simply put, a bibliography is a list of references that is created at the end of your research paper. This resource discusses either all the sources that were used to create the work or just those that were cited in the work. The type of citation page you create depends on the style that you use. While there are several different styles out there, three styles are most popular.

Modern Language Association

Humanities, philosophy, and English research papers will typically use the MLA style writing guide. The citation page will be found at the end with the title, “ Works Cited .” MLA is easy for philosophers and high school students because it breaks down how to cite communication sources like web pages, blogs, and music. In-text citation for MLA takes the author-page format, but footnotes can be used to provide more information.

American Psychological Association

APA lists only the sources cited within the body of the research paper. The citation page is labeled “ References .” APA will be used for research papers that cover social sciences or technical subjects. APA makes citing sources like journals, manuals, and other technical sources easier and uses an author-date in-text citation method. Like MLA, you might also use footnotes to discuss context or copyright information.

Chicago Manual of Style or Turabian

Looking for citations for your history or religion research paper? This style might become your best friend. Chicago and Turabian are similar in the fact that they both are covered under the Chicago Manual of Style. The difference is that Turabian is designed for non-published student works and Chicago polishes published works nicely.

In addition to having two formats, this style is unique because it can have either a “Bibliography” or “References” citation page. If you use notes for in-text citation, go with a bibliography and list all the sources used to create the work. With author-date citations, you’ll use a “References” title.

Creating Your Research Citation Page

Now that you understand the styles to use, it’s time to create your research paper citation page. This can be a piece of cake if you follow the correct steps.

Step 1: Create a Preliminary Bibliography

While you are doing your research and gathering data for your research paper, it can be helpful to create preliminary bibliography . Not only will this take the work out for you in the end, but it can help you to organize your thoughts as well. When creating your preliminary bib, you’ll want to gather information about:

• Author(s) and/or editor(s)
• Published date
• Page numbers (if applicable)

After gathering this information, you’ll want to create a bibliographical citation following your unique style. For example, a book will look like:

MLA: Collins, Suzanne. Mockingjay . New York City, Scholastic Press, 2010.

APA: Collins, S. (2010). Mockingjay. Scholastic.

Chicago/Turabian: Collins, Suzanne. Mockingjay . New York: Scholastic, 2010.

Step 2: Title Your Work

Your research bibliography or reference page will begin on the very last page of your document. This will be after any endnotes that you used. The title will vary based on your style (Bibliography, References or Works Cited), but it’s centered at the top of your page. It will have the same one-inch margins and headers as the rest of your paper.

Step 3: Create Your Entries

If you created a preliminary bibliography, then you need to alphabetize your entries. The entries will be alphabetized by the author’s last name, corporation, or title of the work. All styles will require a ½ inch hanging indent after the first line of the bibliographical citation. For spacing, you’ll need to see your style guideline since the spacing for References and Works Cited is different from a Bibliography page.

That’s a Wrap

Once you’ve added your citations, your research paper is officially done. Your citation page might be as little as a few entries or have dozens of sources. Following the style guides and steps can make sure you are error-free and ready to earn that A.

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Types of Bibliography Styles

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How to Write a Bibliography in APA Format

Kendra Cherry, MS, is a psychosocial rehabilitation specialist, psychology educator, and author of the "Everything Psychology Book."

Emily is a board-certified science editor who has worked with top digital publishing brands like Voices for Biodiversity, Study.com, GoodTherapy, Vox, and Verywell.

• APA Bibliography
• How to Create One
• Why You Need It

Sample Bibliography

An APA format bibliography lists all of the sources that might be used in a paper. A bibliography can be a great tool to help you keep track of information during the research and writing process. In some cases, your instructor may require you to include a bibliography as part of your assignment.

At a Glance

A well-written APA format bibliography can help you keep track of information and sources as you research and write your psychology paper. To create a bibliography, gather up all of the sources that you might use in your paper. Create an APA format reference for each source and then write a brief annotation. Your annotation should be a brief summary of what each reference is about. You can quickly refer to these annotations When writing your paper and determine which to include.

What Is an APA Format Bibliography?

An APA format bibliography is an alphabetical listing of all sources that might be used to write an academic paper, essay, article, or research paper—particularly work that is covering psychology or psychology-related topics. APA format is the official style of the American Psychological Association (APA). This format is used by many psychology professors, students, and researchers.

Even if it is not a required part of your assignment, writing a bibliography can help you keep track of your sources and make it much easier to create your final reference page in proper APA format.

Creating an APA Bibliography

A bibliography is similar in many ways to a reference section , but there are some important differences. While a reference section includes every source that was actually used in your paper, a bibliography may include sources that you considered using but may have dismissed because they were irrelevant or outdated.

Bibliographies can be a great way to keep track of information you might want to use in your paper and to organize the information that you find in different sources. The following are four steps you can follow to create your APA format bibliography.

Start on a New Page

Your working bibliography should be kept separate from the rest of your paper. Start it on a new page, with the title "Bibliography" centered at the top and in bold text. Some people use the title "References" instead, so it's best to check with your professor or instructor about which they prefer you to use.

Gather Your Sources

Compile all the sources you might possibly use in your paper. While you might not use all of these sources in your paper, having a complete list will make it easier later on when you prepare your reference section.

Gathering your sources can be particularly helpful when outlining and writing your paper.

By quickly glancing through your working bibliography, you will be able to get a better idea of which sources will be the most appropriate to support your thesis and main points.

Reference Each Source

Your references should be listed alphabetically by the author’s last name, and they should be double-spaced. The first line of each reference should be flush left, while each additional line of a single reference should be a few spaces to the right of the left margin, which is known as a hanging indent.

The format of each source is as follows for academic journals:

• Last name of first author (followed by their first initial)
• The year the source was published in parentheses
• The title of the source
• The journal that published the source (in italics)
• The volume number, if applicable (in italics)
• The issue number, if applicable
• Page numbers (in parentheses)
• The URL or "doi" in lowercase letters followed by a colon and the doi number, if applicable

The following examples are scholarly articles in academic journals, cited in APA format:

• Kulacaoglu, F., & Kose, S. (2018). Borderline personality disorder (BPD): In the midst of vulnerability, chaos, and awe.  Brain sciences ,  8 (11), 201. doi:10.3390/brainsci8110201
• Cattane, N., Rossi, R., & Lanfredi, M. (2017). Borderline personality disorder and childhood trauma: exploring the affected biological systems and mechanisms.  BMC Psychiatry,   18 (221). doi:10.1186/s12888-017-1383-2

Visit the American Psychological Association's website for more information on citing other types of sources including online media, audiovisual media, and more.

Create an Annotation for Each Source

Normally a bibliography contains only references' information, but in some cases you might decide to create an annotated bibliography. An annotation is a summary or evaluation of the source.

An annotation is a brief description of approximately 150 words describing the information in the source, your evaluation of its credibility, and how it pertains to your topic. Writing one of these for each piece of research will make your writing process faster and easier.

This step helpful in determining which sources to ultimately use in your paper. Your instructor may also require it as part of the assignment so they can assess your thought process and understanding of your topic.

Reasons to Write a Bibliography

One of the biggest reasons to create an APA format bibliography is simply to make the research and writing process easier.

If you do not have a comprehensive list of all of your references, you might find yourself scrambling to figure out where you found certain bits of information that you included in your paper.

A bibliography is also an important tool that your readers can use to access your sources.

While writing an annotated bibliography might not be required for your assignment, it can be a very useful step. The process of writing an annotation helps you learn more about your topic, develop a deeper understanding of the subject, and become better at evaluating various sources of information.

The following is an example of an APA format bibliography by the website EasyBib:

There are many online resources that demonstrate different formats of bibliographies, including the American Psychological Association website . Purdue University's Online Writing Lab also has examples of formatting an APA format bibliography.

Check out this video on their YouTube channel which provides detailed instructions on formatting an APA style bibliography in Microsoft Word.

You can check out the Purdue site for more information on writing an annotated APA bibliography as well.

What This Means For You

If you are taking a psychology class, you may be asked to create a bibliography as part of the research paper writing process. Even if your instructor does not expressly require a bibliography, creating one can be a helpful way to help structure your research and make the writing process more manageable.

For psychology majors , it can be helpful to save any bibliographies you have written throughout your studies so that you can refer back to them later when studying for exams or writing papers for other psychology courses.

American Psychological Association. Publication Manual of the American Psychological Association . 7th Edition. Washington, DC: American Psychological Association; 2020.

Masic I. The importance of proper citation of references in biomedical articles.   Acta Inform Med . 2013;21(3):148–155. doi:10.5455/aim.2013.21.148-155

American Psychological Association. How do you format a bibliography in APA Style?

Cornell University Library. How to prepare an annotated bibliography: The annotated bibliography .

By Kendra Cherry, MSEd Kendra Cherry, MS, is a psychosocial rehabilitation specialist, psychology educator, and author of the "Everything Psychology Book."

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If you are using Chicago style footnotes or endnotes, you should include a bibliography at the end of your paper that provides complete citation information for all of the sources you cite in your paper. Bibliography entries are formatted differently from notes. For bibliography entries, you list the sources alphabetically by last name, so you will list the last name of the author or creator first in each entry. You should single-space within a bibliography entry and double-space between them. When an entry goes longer than one line, use a hanging indent of .5 inches for subsequent lines. Here’s a link to a sample bibliography that shows layout and spacing . You can find a sample of note format here .

Complete note vs. shortened note

Here’s an example of a complete note and a shortened version of a note for a book:

1. Karen Ho, Liquidated: An Ethnography of Wall Street (Durham: Duke University Press, 2009), 27-35.

1. Karen Ho, Liquidated , 27-35.

Note vs. Bibliography entry

The bibliography entry that corresponds with each note is very similar to the longer version of the note, except that the author’s last and first name are reversed in the bibliography entry. To see differences between note and bibliography entries for different types of sources, check this section of the Chicago Manual of Style .

For Liquidated , the bibliography entry would look like this:

Ho, Karen, Liquidated: An Ethnography of Wall Street . Durham: Duke University Press, 2009.

Citing a source with two or three authors

If you are citing a source with two or three authors, list their names in your note in the order they appear in the original source. In the bibliography, invert only the name of the first author and use “and” before the last named author.

1. Melissa Borja and Jacob Gibson, “Internationalism with Evangelical Characteristics: The Case of Evangelical Responses to Southeast Asian Refugees,” The Review of Faith & International Affairs 17, no. 3 (2019): 80-81, https://doi.org/10.1080/15570274.2019.1643983 .

Shortened note:

1. Borja and Gibson, “Internationalism with Evangelical Characteristics,” 80-81.

Bibliography:

Borja, Melissa, and Jacob Gibson. “Internationalism with Evangelical Characteristics: The Case of Evangelical Responses to Southeast Asian Refugees.” The Review of Faith & International Affairs 17. no. 3 (2019): 80–93. https://doi.org/10.1080/15570274.2019.1643983 .

Citing a source with more than three authors

If you are citing a source with more than three authors, include all of them in the bibliography, but only include the first one in the note, followed by et al. ( et al. is the shortened form of the Latin et alia , which means “and others”).

1. Justine M. Nagurney, et al., “Risk Factors for Disability After Emergency Department Discharge in Older Adults,” Academic Emergency Medicine 27, no. 12 (2020): 1271.

Short version of note:

1. Justine M. Nagurney, et al., “Risk Factors for Disability,” 1271.

Nagurney, Justine M., Ling Han, Linda Leo‐Summers, Heather G. Allore, Thomas M. Gill, and Ula Hwang. “Risk Factors for Disability After Emergency Department Discharge in Older Adults.” Academic Emergency Medicine 27, no. 12 (2020): 1270–78. https://doi.org/10.1111/acem.14088 .

Citing a book consulted online

If you are citing a book you consulted online, you should include a URL, DOI, or the name of the database where you found the book.

1. Karen Ho, Liquidated: An Ethnography of Wall Street (Durham: Duke University Press, 2009), 27-35, https://doi-org.ezp-prod1.hul.harvard.edu/10.1215/9780822391371 .

Bibliography entry:

Ho, Karen. Liquidated: An Ethnography of Wall Street . Durham: Duke University Press, 2009. https://doi-org.ezp-prod1.hul.harvard.edu/10.1215/9780822391371 .

Citing an e-book consulted outside of a database

If you are citing an e-book that you accessed outside of a database, you should indicate the format. If you read the book in a format without fixed page numbers (like Kindle, for example), you should not include the page numbers that you saw as you read. Instead, include chapter or section numbers, if possible.

1. Karen Ho, Liquidated: An Ethnography of Wall Street (Durham: Duke University Press, 2009), chap. 2, Kindle.

Ho, Karen. Liquidated: An Ethnography of Wall Street . Durham: Duke University Press, 2009. Kindle.

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APA Format is the official writing style of the American Psychological Association, and is primarily used in subjects such as psychology, education, and the social sciences.

It specifies how to format academic papers and citations for publication in journals, periodicals, and bulletins.

This guide will show you how to prepare and format a document to be fully compliant with APA Format in 2020.

Before You Start Writing...

There are several steps you must take to prepare a new document for APA style before you start writing your paper:

• Make sure the paper size is 8.5" x 11" (known as 'Letter' in most word processors).
• Set the margin size to 1" on all sides (2.54cm).
• Change the line spacing to double-spaced .
• Add page numbers to the top-right corner of every page.
• Add a running head to the top-left corner of every page.

We have a pre-made APA style template document you can download to be sure you are ready to start writing. You can download it below:

When your document is ready, proceed to writing the title page .

Home / Guides / Citation Guides / MLA Format / Creating an MLA Bibliography

Creating an MLA Bibliography

If you write a research paper in MLA format, then you will need to include a Works Cited page according to the current 9th edition of the Modern Language Association (MLA) guidelines. Along with citing your sources within the body of your paper, you also need to include full citations of all sources at the end of your paper. The references in a bibliography are formatted in the same way as they would be in a Works Cited page. However, a bibliography refers to all works that you have consulted in your research, even if you did not use their information directly in your paper.

When you use the correct MLA bibliography format, it shows the reader what sources you consulted, makes finding your sources easier for the reader, and gives credibility to your work as a researcher and writer. This MLA sample paper will show you how the bibliography is incorporated into the rest of your paper. We also have a guide on APA reference pages , if you are following APA style in your paper.

Works cited or bibliography?

You may be wondering, what is a bibliography, and how is it different from a Works Cited page? The difference between the two is that while a bibliography refers to any source you consulted to write your research paper, a Works Cited page only includes full citations of the sources you quoted or paraphrased within your paper.

Typically, when someone says, “MLA bibliography” they really mean a Works Cited page, since the MLA format usually uses a Works Cited page instead of a bibliography.

A bibliography in MLA format may also refer to a Works Consulted page. If you used other sources that you did not directly quote or paraphrase within the paper, you will need to create a Works Consulted/Additional Resources page. A Works Consulted page starts on a separate page and follows the Works Cited page. It follows the same formatting guidelines as a Works Cited page, but you will use Works Consulted (or Additional Resources) as the title.

If you’re unsure of what to include in your citations list (works cited, works consulted, or both), ask your instructor. For the rest of this article, we will refer to this page as the MLA bibliography.

MLA bibliography formatting guidelines

These are the formatting rules you need to follow to create your bibliography according to MLA’s current edition guidelines. Your first page(s) will be your Works Cited page(s) and include the references that you directly refer to in your paper. Usually, this is all that is needed. If your instructor wants you to also include the works you consulted but did not include in your paper (more like a bibliography), then add Works Consulted or Additional Resources page for these sources.

• Your MLA Works Cited (and Works Consulted or Additional Resources pages) should begin on a separate page or pages at the end of your essay.
• Your essay should have a header on every page that includes your last name and the page number.
• The last name/page number header should be on the top right of each page with a ½ inch margin from the top of the page.
• One-inch margins.
• Title the page Works Cited (no italicization or quotation marks) unless otherwise instructed. Center the title. The top should look like this:

• Only center the Works Cited title; all citations should be left-justified.
• Double-space citations.
• Do not add an additional space between citations.
• After the first line, use a hanging indent of ½ inch on all additional lines of a citation. The hanging indent should look like this:

• Typically, this is the author’s last name, but sometimes it could be the title of the source if the author’s name is not available.

If you have a Works Consulted or Additional Resources page after your Works Cited page, format it in the same way, but with the title of Works Consulted or Additional Resources instead of Works Cited. Alternatively, your instructor may require a bibliography. If this is the case, all your sources, whether they are cited in your paper are not, are listed on the same page.

MLA citation guidelines

These are the rules you need to follow to create citations for an MLA bibliography. This section contains information on how to correctly use author names, punctuation, capitalization, fonts, page numbers, DOIs, and URLS in the citations on your MLA bibliography.

Author names

After the title Works Cited, the last name of the author of a source should be the first thing to appear on your page.

List the author’s last name followed by a comma, then the first name followed by the middle name or middle initial if applicable, without a comma separating the first and middle names. Add a period after the name.

Rowling, J.K.

Smith, Alexander McCall.

• Do not include titles such as Dr., Mrs., etc. or professional qualifications such as PhD, M.S., etc. with author names.
• Include suffixes such as Jr. or III after the author’s first name. Separate the first name and the suffix by a comma unless the suffix is a numeral. For example, to cite an author named John Smith, Jr., you would type Smith, John, Jr.

Sources with two authors

For a source with two authors, list the author names in your citation in the order they appear on the source, not alphabetically.

Type the last name of the first author listed on the source followed by a comma, then the first author’s first name followed by a comma. Then type the word “and” then list the second author’s first name and last name in the standard order. Follow the second name with a period.

Include middle names or initials and suffixes when applicable according to the guidelines for one author as listed above.

1st Author’s Last Name, First Name, and 2nd Author’s First Name Last Name.

Lutz, Lisa, and David Hayward.

Clark, Mary Higgins, and Alafair Burke.

Sources with three or more authors

For a source with three or more authors, only type the last and first name of the first author listed in the source, followed by a comma and the phrase et al., which is Latin for “and others.” Be sure to always place a period after the al in et al. but never after the et.

1st Author’s Last Name, First Name, et al.

Charaipotra, Sona, et al.

Williams, Beatriz, et al. All the Ways We Said Goodbye . HarperLuxe, 2020.

Organizations and corporations as authors

For sources with organizations or corporations listed as the author, type the name of the corporation in place of an author’s name. If the organization begins with an article like a, an, or the, it should be excluded in the Works Cited entry.

Modern Language Association of America. MLA Handbook . 2016.

*Note: If the organization is listed as both the author and the publisher, begin the citation with the title and include the organization’s name within the publisher field instead. 

For a source with no author listed, simply omit the author’s name and begin the citation with the title of the source. Use the first letter of the title when considering alphabetical order in your MLA bibliography.

Capitalization

Use MLA title case when citing titles of sources.

• Nouns, pronouns, verbs, adverbs, adjectives, and subordinating conjunctions should be capitalized.
• Articles, prepositions, and coordinating conjunctions should not be capitalized.

Font formatting

• Italicize the titles of larger works such as magazines and books. Also, italicize database and website names.
• Instead of italicization, use quotation marks around titles of shorter works such as poems, short stories, and articles.
• End all bibliography citations with a period.

Page numbers

Include page numbers in your full citations whenever possible. This helps the reader find the information you cited more quickly than if you just cited the entire source and lends more credibility to your argument. If you cite different pages from the same source within your paper, you should cite the entire source on your MLA bibliography instead of listing all of the page numbers you used.

When including page numbers in a citation, use the abbreviation p. to cite one page and the abbreviation pp. to cite multiple pages with a hyphen between the page numbers.

p. 25 or pp. 16-37

When citing page numbers in MLA, omit the first set of repeated digits.

pp. 365-69, not pp. 365-369

DOIs and URLs

A Digital Object Identifier (DOI) is used to locate and identify an online source. While URLs may change or web pages might be edited or updated, a DOI is permanent and therefore more useful in a source citation.

• Use a DOI (digital object identifier) whenever possible. Otherwise use a permalink or URL.
• DOIs should be formatted with “https://doi.org/” before the DOI number.
• Do not include “http://” or “https://” in your URLs.
• As either one will be the last part of your citation, place a period after the DOI or URL. (Note that this period is not part of the DOI or URL.)

Butarbutar, R, et al. “Analyzing of Puzzle Local Culture-Based in Teaching English for Young Learners.” IOP Conference Series: Earth and Environmental Science , vol. 343, 2019, https://doi.org/10.1088/1755-1315/343/1/012208.

Accessed dates

Since the previous 8th edition of the MLA Handbook was published, you do NOT need to list an accessed date for a stable source (e.g., online newspaper article, journal article, photograph, etc.). However, including an access date is good to include when a source does not have a publishing date, and some instructors will request that accessed dates be included for all sources.

If you do include an access date, here’s how to format it:

• Place it at the end of the citation without “http://” or “https://”.
• Write “Accessed” first, followed by the date accessed.
• The date accessed should be formatted as Day Month (abbreviated) Year.

Butarbutar, R, et al. “IOPscience.” IOP Conference Series: Earth and Environmental Science , IOP Publishing, 1 Oct. 2019, iopscience.iop.org/article/10.1088/1755-1315/343/1/012208/meta. Accessed 8 Oct. 2020.

Note: If you choose to list an accessed date after a DOI, the accessed date part of the citation will follow the period after the DOI and will end with a period at the end of the citation

Butarbutar, R, et al. “Analyzing of Puzzle Local Culture-Based in Teaching English for Young Learners.” IOP Conference Series: Earth and Environmental Science , vol. 343, 2019, https://doi.org/10.1088/1755-1315/343/1/012208. Accessed 8 Oct. 2020.

MLA 8 th edition vs MLA 9 th edition

The 9 th edition of the MLA handbook re-introduces guidelines regarding paper formatting (which were not present in the 8 th edition). The guidance in the 9 th addition is consistent with the guidance in previous editions and expands on the formatting of tables, figures/illustrations, and lists. The 9 th edition also offers new guidance in areas like annotated bibliographies, inclusive language, and footnotes/endnotes.

Many of the differences between the 8 th edition and 9 th edition have to do with the formatting of the core elements in reference list entries. Some of the main changes include:

Written by Grace Turney , freelance writer and artist. Grace is a former librarian and has a Master’s degree in Library Science and Information Technology. 

MLA Formatting Guide

MLA Formatting

Annotated Bibliography

Bibliography

• Block Quotes
• et al Usage
• In-text Citations
• Paraphrasing
• Page Numbers
• Sample Paper
• Works Cited
• MLA 8 Updates
• MLA 9 Updates
• View MLA Guide

Citation Examples

• Book Chapter
• Journal Article
• Magazine Article
• Newspaper Article
• Website (no author)
• View all MLA Examples

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An MLA bibliography is similar to the Works Cited list that you include at the end of your paper. The only difference between a Works Cited list and a bibliography is that for the former, you need to include the entries for only the sources you cited in the text, whereas for the latter you can also include the sources you consulted to write your paper but didn’t directly cite in your writing. MLA generally prefers Works Cited lists to bibliographies.

If your instructor advises you to create an MLA bibliography, follow the same guidelines you would follow for creating an MLA Works Cited list.

The bibliography list appears at the end of the paper, after any endnotes if they are present.

All margins (top, bottom, left, and right) should be set at 1 inch.

Write the running head in the top right of the page at 0.5 inch from the top. Use the running head “Surname Page #.”

The font should be clear enough to read. Use Times New Roman font of size 12 points.

Entries should be double-spaced. If any entry runs over more than a line, indent the subsequent lines of the entry 0.5 inch from the left margin.

Bibliographic entries are arranged alphabetically according to the first item in each entry.

Title your bibliography as “Bibliography.”

Braidotti, Rosi. The Posthuman . Polity, 2013.

Brisini, Travis. “Phytomorphizing Performance: Plant Performance in an Expanded Field.” Text and Performance Quarterly , vol. 39, 2019,            pp. 1–2.

Riccio, Thomas. “Reimagining Yup’ik and Inupiat Performance.” Northwest Theatre Review , vol. 12, no. 1, 1999, pp. 1–30.

General rules for creating an annotated bibliography

The annotation is given after the source entry and is generally about 100-150 words in length. The annotation should be indented 1 inch from the left margin to distinguish it from the hanging indent within the citation entry.

The annotation, in general, should be written as short phrases. However, you may use full sentences as well.

The annotation for each source is usually no longer than one paragraph. However, if multiple paragraphs are included, indent the second and subsequent paragraphs without any extra line space between them.

The annotation provides basic information about the source, but does not include details about the source, quotes from the author, etc. The information can be descriptive (by generally describing what the source covers) or evaluative (by evaluating the source’s usefulness to the argument in your paper).

Example annotated bibliography

The below is an example of an annotated bibliography:

Morritt, Robert D. Beringia: Archaic Migrations into North America . Cambridge Scholars Pub, 2011.

The author studies the migration of cultures from Asia to North America. The connection between the North American Athabaskan language family and Siberia is presented, together with comparisons and examinations of the implications of linguistics from anthropological, archaeological, and folklore perspectives. This book explores the origins of the earliest people in the Americas, including Siberian, Dene, and Navajo Creation myths; linguistic comparisons between Siberian Ket Navajo and Western Apache; and comparisons between indigenous groups that appear to share the same origin.

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A Beginner’s Guide to Citations, References and Bibliography in Research Papers

As an academician, terms such as citations, references and bibliography might be a part of almost every work-related conversation in your daily life. However, many researchers, especially during the early stages of their academic career, may find it hard to differentiate between citations, references and bibliography in research papers and often find it confusing to implement their usage. If you are amongst them, this article will provide you with some respite. Let us start by first understanding the individual terms better.

Citation in research papers:  A citation appears in the main text of the paper. It is a way of giving credit to the information that you have specifically mentioned in your research paper by leading the reader to the original source of information. You will need to use citation in research papers whenever you are using information to elaborate a particular concept in the paper, either in the introduction or discussion sections or as a way to support your research findings in the results section.

Reference in research papers:  A reference is a detailed description of the source of information that you want to give credit to via a citation. The references in research papers are usually in the form of a list at the end of the paper. The essential difference between citations and references is that citations lead a reader to the source of information, while references provide the reader with detailed information regarding that particular source.

Bibliography in research papers:

A bibliography in research paper is a list of sources that appears at the end of a research paper or an article, and contains information that may or may not be directly mentioned in the research paper. The difference between reference and bibliography in research is that an individual source in the list of references can be linked to an in-text citation, while an individual source in the bibliography may not necessarily be linked to an in-text citation.

It’s understandable how these terms may often be used interchangeably as they are serve the same purpose – namely to give intellectual and creative credit to an original idea that is elaborated in depth in a research paper. One of the easiest ways to understand when to use an in-text citation in research papers, is to check whether the information is an ongoing work of research or if it has been proven to be a ‘fact’ through reproducibility. If the information is a proven fact, you need not specifically add the original source to the list of references but can instead choose to mention it in your bibliography. For instance, if you use a statement such as “The effects of global warming and climate changes on the deterioration of environment have been described in depth”, you need not use an in-text citation, but can choose to mention key sources in the bibliography section. An example of a citation in a research paper would be if you intend to elaborate on the impact of climate change in a particular population and/or a specific geographical location. In this case, you will need to add an in-text citation and mention the correct source in the list of references.

Now that you have understood the basic similarities and differences in these terms, you should also know that every journal follows a particular style and format for these elements. So when working out how to write citations and add references in research papers, be mindful of using the preferred style of your target journal before you submit your research document.

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How to Write a Bibliography for a Research Paper: Guide & Samples

A bibliography is undoubtedly one of the most essential parts of every research paper. A research paper without a bibliography equals poorly conducted research. As such, the importance of a bibliography in a research paper cannot be overemphasized.

To produce well-constructed research, you must consult other authors and use their materials to support your argument. This is the only way to give these authors their credit; by listing them out in your bibliography.

Acknowledging the sources used in writing the topic is an effective approach to avoiding plagiarism in your research. It is also a great way to provide and inform other scholars with sources they may not be aware of. This article seeks to provide the format of bibliography and how to write a good bibliography for your research paper.

What Is a Bibliography in a Research Paper?

Simply put, a bibliography is a list of works used in writing a research paper. Every research paper must contain a list of sources the author used in preparing the research paper. Your source can range from books to scholarly papers, speeches, private records, interviews, letters, websites, and other sources.

Your research paper was not created in a vacuum; you must have consulted other authors or sourced to create enriched content. Therefore, at the end of your research, you must attach a list of all the sources used.

How to Write Bibliography for Research Paper

Writing a bibliography isn’t so hard; all you need is a list of sources used and a format for documenting them. To make things easier for you, prepare a draft comprising all of the sources you must have used. Ensure you include the book’s full title, the author, place of publication, publication date, and publisher. All sources must be listed out alphabetically using the authors’ names.

It is also important to note that there are different formats for writing a bibliography. As such, you must decide which format to employ in your research paper. You can format your work in Modern Language Association (MLA) format, American Psychological Association (APA), or Chicago Manual of Style (CMS). Regardless of which you choose, ensure that it is done correctly.

How to Format a Bibliography

Once you have an idea of how to format a bibliography, most of the work is completed. However, when writing it you need to pay close attention to each format and its content to avoid mixing them up. For printed sources, the bibliography of a research paper should provide the following:

• Author’s name
• Title of publication (provide the title of the article if it’s a journal, magazine, or encyclopedia)
• Date of publication
• Place of Publication of a book
• The publishing house of a book
• Volume number of magazine or encyclopedia
• The page numbers

To document sources from a website, you need to document the following:

• The author or editor’s name if there’s any
• Title of the page
• The organization of the webpage
• The URL of the website
• The date the information was gotten from the website

The common formats for writing a bibliography in a research paper are MLA and APA style. A bibliography is known as “Works Cited” in MLA and on the other hand, it is called “References List” in APA. Though both formats contain similar information about the sources used, there are still slight differences in formatting style. Here’s  what MLA and APA bibliography styles should look like.

How to Write a Bibliography APA

Your research paper’s bibliography must be attached at the end of it with the tag “References” at the center. In addition to this, you need to pay attention to the basics of APA style, such as capitalization, abbreviation, punctuation, underlining or italics, hanging indentation, and others. Here’s a research paper bibliography example in APA style:

Author’s last name, first initial. (Publication date). Book title . City of Publication: Publishing company.

• For encyclopedia:

Author’s last name, first initial. (Date). Title of Article. Title of Encyclopedia (Volumes, pages). City of Publication: Publishing Company.

• For magazine and newspaper articles:

Author’s last name, first initial. (Publication Date). Article title. Periodical title, Volume number (issue number if there’s any), page numbers.

How to Write a Bibliography MLA

Bibliography in MLA format is called “Works cited” and must be arranged in alphabetical order according to the author’s name. Here’s the required format for MLA style for varying sources:

“Author’s last name, first name. Book title. Publication City: Publishing company, publication date.”

• Encyclopedia & dictionary:

“Author’s last name, first name. “Title of Article.” Encyclopedia’s Title. Date.”

• Magazine & newspaper:

“Author’s last name, first name. “Article title.” Periodical title volume Date: inclusive pages.”

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Research Process: Bibliographic Information

• Selecting a Topic
• Background Information
• Narrowing the Topic
• Library Terms
• Generating Keywords
• Boolean Operators
• Search Engine Strategies
• Google Searching
• Basic Internet Terms
• Research & The Web
• Search Engines
• Evaluating Books
• Evaluating Articles
• Evaluating Websites

Bibliographic Information

• Off Campus Access
• Periodical Locator

What is a bibliography?

A bibliography is a list of works on a subject or by an author that were used or consulted to write a research paper, book or article. It can also be referred to as a list of works cited. It is usually found at the end of a book, article or research paper. 

Gathering Information

Regardless of what citation style is being used, there are key pieces of information that need to be collected in order to create the citation.

For books and/or journals:

• Author name
• Title of publication 
• Article title (if using a journal)
• Date of publication
• Place of publication
• Volume number of a journal, magazine or encyclopedia
• Page number(s)

For websites:

• Author and/or editor name
• Title of the website
• Company or organization that owns or posts to the website
• URL (website address)
• Date of access 

This section provides two examples of the most common cited sources: a print book and an online journal retrieved from a research database. 

Book - Print

For print books, bibliographic information can be found on the  TITLE PAGE . This page has the complete title of the book, author(s) and publication information.

The publisher information will vary according to the publisher - sometimes this page will include the name of the publisher, the place of publication and the date.

For this example :  Book title: HTML, XHTML, and CSS Bible Author: Steven M. Schafer Publisher: Wiley Publications, Inc.

If you cannot find the place or date of publication on the title page, refer to the  COPYRIGHT PAGE  for this information. The copyright page is the page behind the title page, usually written in a small font, it carries the copyright notice, edition information, publication information, printing history, cataloging data, and the ISBN number.

For this example : Place of publication: Indianapolis, IN Date of publication: 2010

Article - Academic OneFile Database

In the article view:

Bibliographic information can be found under the article title, at the top of the page. The information provided in this area is  NOT  formatted according to any style.

Citations can also be found at the bottom of the page; in an area titled  SOURCE CITATION . The database does not specify which style is used in creating this citation, so be sure to double check it against the style rules for accuracy.

Article - ProQuest Database

Bibliographic information can be found under the article title, at the top of the page. The information provided in this area is  NOT  formatted according to any style. 

Bibliographic information can also be found at the bottom of the page; in an area titled  INDEXING . (Not all the information provided in this area is necessary for creating citations, refer to the rules of the style being used for what information is needed.)

Other databases have similar formats - look for bibliographic information under the article titles and below the article body, towards the bottom of the page. 

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• A Research Guide
• Research Paper Guide

How to Write a Bibliography for a Research Paper

• The purpose of a bibliography
• Bibliography in MLA style
• APA vs MLA comparsion
• Popular types of bibliography
• How to structure your bibliography
• How to cite popular types of sources
• Bibliography example

This helpful guide will show you how to write a bibliography for a research paper in MLA citation format. You shall learn what a bibliography is, why it is necessary, what aspects must be included, and how to structure it. We shall explore various types of MLA sources based on the most popular scenarios. In the final part of the guide, we provide a sample of a bibliography page for a research paper that is also done in MLA style .

The purpose of a bibliography in a research paper

A bibliography in academic writing represents a detailed collection of books, academic journals, scientific magazines, online sources , and various multimedia citations formed as a list. It represents all an author has used in research while composing an assignment. It must be noted that one should use every source used during the research process, not only those mentioned as direct citations. In other words, to write a bibliography correctly, you must include the following elements:

• The name of the author(s) is a critical bibliography element;
• Complete the title of the source material in question;
• Name of the publisher;
• Date when the work has been published;
• Page number, ISBN, or DOI of the source material.

Note: Many students seem to confuse the purpose of a bibliography in a research paper since it’s easy to confuse a Bibliography page with the Works Cited page that one may require for an MLA paper. While these may look the same, they do not stand for the same thing!

How to write a bibliography in MLA style?

The answer to that question is quite simple: to make a bibliography, you must compose an alphabetic list of all the sources used for a research paper. The best way to achieve that is to take notes while you are in progress of writing. Try to collect all the required information to make a Bibliography draft. Take notes of every book, website, magazine, and newspaper, depending on the sources used. Once you collect the notes, you can get them sorted much easier! Depending on the sources in print or those located online, you should include the following standard elements:

Bibliography Sources available in print: 

Name of the author(s)

Title of the publication or a magazine (if relevant)

Date of publication

Name of the publisher

Volume and page numbers for journals in print

Bibliography Sources found online for a bibliography page : 

Author’s name

Editor’s name

The name of the website

The date you accessed the online source (web pages, online databases, etc.).

As a rule, locating specific information for your bibliography can be challenging. You should always take time to locate as much information about the source as possible. When in doubt, look for the following ways to improve the credibility of bibliography sources:

• The heading of the article, meaning where the publisher’s information might appear.
• Frontpage or editorial page
• Table of contents in a journal
• Header or footer of the web source
• Contacts page or DOI numbers for journal publications

Bibliography writing in different styles

The type of your bibliography will largely depend on the citation types you are planning to use or the writing style in question. In writing a bibliography, you must start with double-checking things regarding formatting. For this purpose, we shall explore MLA Works Cited vs. APA References page . This bibliography guide won’t delve into specifics; we shall only explain how things relate and differ between the two most popular styles.

Popular Types of Bibliography: Bibliography, Annotated Bibliography, and Works Cited

As mentioned, a bibliography must include every source the author has consulted or referenced while creating the research paper. It means that it does not matter if the source has been cited. It must be mentioned once it has been used as a reference for a certain idea! Things do not work this way with a typical Works Cited page. Unlike a classic bibliography, it must include only those sources that have been actually mentioned as in-text citations.

As a researcher, you might encounter a sub-type of a Bibliography for a research paper type called an Annotated Bibliography . The major difference here is that you must show the usage intent, define the purpose, and provide bibliographic information about the author. In addition to the usual entry with the author and the publisher looking like a Bibliography entry, you must compose a short source description by offering a brief background and the importance.

Mainrules on how to structure your bibliography

Before you proceed any further, you must check the presence of the “Works Cited” (in MLA), “References” (in APA style), or a Bibliography heading for your page, depending on the situation and the type of sources that you have cited and/or consulted. Here is the basic bibliography checklist to ensure all the critical information is included. Let’s sum it up to five basic research paper bibliography questions:

• Have you included three to five valid sources providing verified and trustworthy information about your research subject?
• Have you included information that will make it possible to identify each of your sources? It must be the author’s name, title, and publisher.
• Have you checked your grading rubric twice to guarantee that you use citations properly (MLA, Chicago, APA, Harvard, etc.) for a bibliography?
• Has your Bibliography page been sorted according to the ABC?
• Are your sources relevant to the research subject and the main thesis questions?

Now, let’s proceed with the basic bibliography in research rules:

• All your Bibliography for research paper entries must be double-spaced.
• Check whether you must use single-spaced entries, depending on the format other than MLA.
• All your entries must be done according to the last name of the author and sorted alphabetically.
• Personal communications, letters, and interviews are not included in the Works Cited or References page. It is also true for Bibliography pages.
• The sources without an author must also be sorted alphabetically based on the title or organization’s name.
• A single space must be used after any punctuation mark used for MLA citation style for most bibliography types.
• If you plan to divide a long word or a lengthy URL into more than one line, use a hyphen or a slash.
• Avoid adding hyphens to the URL if the original link has not used it.
• Do not start the first line of the bibliographical information with any punctuation mark, except for the names of the quoted source.
• All the lines after the first in a Bibliography entry must have a hanging indent from the left margin (1/2 inches or 1.25 cm).
• The descriptive addition of the Annotated Bibliography must be presented with the hanging indent for all lines after the actual citation.

Note: when you are unsure about some source type and the validity, it’s necessary to consult your academic advisor or omit it entirely. It will help to make your bibliography sound confident!

How to cite popular types of sources with MLA examples?

We have collected all the types of sources that can be used for research paper writing based on the Modern Language Association (MLA) style. Look at the research paper bibliography example for each type and compare it to your existing bibliography sources.

Book with one author or editor bibliography example:

Stipe, Michael. The History of Alternative Rock Music: From Arts to Photography. Penguin Books Press, London, 2004.

Book with two authors or editors’ bibliography entry:

Cohen, Leonard, and J.B. King, eds. Canadian Arts and Culture: How the Cultural Identity Has Been Born. Ontario: BC Press, 1994.

Book with three authors or editors Bibliography:

Calbridge, John, Carl Brunsey, and Tony Wilson. Northern African Studies: Why Should We Preserve National African Heritage? New York: Syracuse University Press, 2022.

Book with more than three authors or editors bibliography rules:

Nilson, Mary N., Kristofer R. van der Hoef, Ronald Johnson, and Larry King. The Personality of Women in Sweden. Stockholm: Sweden House Press, 2021.

Book with compilers or compilers and editors:

McFly, Martin N., and Wayne Sanders, comps. and eds. The British Choral Traditions: A Compilation of Sacred Hymns and Cultural Works. London: Pengiun Books, 2012.

Book with no author or editor stated:

Seversen’s Guidebook to Marine Navigation: An Illustrated Guide to Denmark’s Marine History. Copenhagen, Denmark, 2019.

Book with one author, translated by another Bibliography entry:

Strandberg, Jonas. Stockholm Revisited. Trans. Ronald King and Michael Mills. New York: Metropolitan Press, 1996.

Work in an anthology, a collection by several authors, with one or more editors and/or compilers:

Fierce, Ben. “How to Overcome Stress in Business Studies.” Business Management and Marketing. Ed. William Johnson. Los Angeles: California, 2004, 34-39.

An article in an encyclopedia with no author stated:

“Compassion.” New Encyclopaedia Britannica. 1996 ed.

Article in an encyclopedia with an author:

If the encyclopedia is famous and has all the entries based alphabetically, you should not provide volume and page numbers as you write bibliographies. If not, you must provide complete publication data with the author’s name, the title of the entry, the name of the encyclopedia, the editor, the edition, and the publisher with the publication year.

Carl van der Saar. “Autism.” Large Dutch Encyclopedia, 2004, English edition.

An article in a magazine, journal, periodical, newsletter, or newspaper with no author stated Bibliography scenario:

“How to Teach Kids the Art of Bushcraft.” Boys Scouting for Boys. Sept. 2016: 13-19.

“The Dangers of Video Games for Teenagers.” Los Angeles Daily News. 26 Sep. 2004: 34.

Article in a magazine, journal, periodical, newsletter, or newspaper with one or more authors:

Farrell, Joseph P. “And the Boys Took It up for Themselves: Scouting, Learning, and Dialogue across Cultures.” Education and Global Cultural Dialogue , 2012, pp. 49–67, https://doi.org/10.1057/9781137045591_4 .

Article from SIRS (Social Issues Resources Series):

Blake, John, and Inna Smith. “The Union of Workers Worldwide.” Labour Union Journal Nov.-Dec. 1991: 34-36. Labour Studies. Ed. Ellen Philips. Vol. 7. Oxford: Oxford Press, SIRS, 1996. Art. 14.

Advertisement in a Bibliography:

Make sure to include in a bibliography any vital information that has not been found in the original source that has been cited.

How to Build an IKEA Desk. Advertisement. 4 Jan. 2019.

Booklet, pamphlet, or brochure with no author stated:

Cancer Care: How to Monitor Your Health. San Diego, CA: Medical Sciences USA, 1996.

Booklet, pamphlet, or brochure with an author:

Zimmer, Hans R. Producing Music in 2022: Pandemic Challenges and Arts. Los Angeles, CA: Berkeley Music Press, 2023.

Book, movie, or film review:

For this type of bibliography, it is necessary to include short forms like “Rev.” for a review, “Ed.” for the edition or something being edited, and “dir.” for the director.

Kruger, Chad. “Learning to Survive in Canadian Rock Scene.” Rev. of Rock Music in Canada: How The Scene Has Been Born, by Brendon Call. Canadian Music Society. Jan.-Mar. 2011: 62-69.

CD-ROM, DVD, VHS:

That Eye The Sky. Dir. Michael Andrews. 1994. VHS. Australian Cinema Pictures, 1996.

Computer service, e.g., BRS, DIALOG, MEAD, etc.:

King, Michael. “Can U.S. Economy Receive a Boost?” Los Angeles Times. Late Ed. – Final Ed., 2. 4 Jun. 1993. DIALOG File 224, item 0207432

Definition from a dictionary:

“Turntable.” Def 3. The Musical Lexicon of Webster’s Online Dictionary. Canadian ed. 2007.

Film, movie:

The use of shortened forms in this bibliography citation type is necessary again for this type of bibliography writing, depending on what you want to include. A minimal film bibliography should include the movie’s title, the director, distribution data, and the year it was released.

Charlie and the Chocolate Factory. Dir. Tim Burton. Filmed after the famous book by Roald Dahl. Perf. Johnny Depp. Warner Bros. Pictures, 2005.

Government publication:

Suppose you wish to cite a publication issued by the government for your bibliography. In that case, you must provide the government’s name itself, the agency behind it, the underlined title of your publication, the place of publication, the publisher, and the date.

Canadian Government. First Nations People and Cultural Adjustment. Gathering Strength: Building Canada’s Future. Ottawa: Ministry of Culture and Arts, 2004.

Internet citations or citing electronic bibliography sources:

“Boy Scout Oath, Law, Motto and Slogan and the Outdoor Code.” Boy Scout Oath, Law and Motto , www.usscouts.org/advance/boyscout/bsoathlaw.asp . Accessed 19 June 2023.

Blair, Tony. Interview. UK Prime Minister’s Main Office. 28 May 2002.

Mention the speaker’s name, the lecture title in quotation marks, the conference, sponsors, location, and the date.

Bradley, Andrew. “Domestic Abuse.” Arizona State University Hall, U of Arizona. 12 May. 2001.

Letter, editorial:

An editorial: 

Jones, Anthony. “Hey, Are You Safe?” Editorial. Johnson’s Publishing. 21 May. 2004: 3.

Rubin, Rick. “How Recording Analogue Has Made Me a Better Person.” Letter. Los Angeles Evening News. 5 Jan. 2005: 34.

Map, chart:

It must be treated the same way as you would treat a book citation in MLA with no author mentioned. Ensure you indicate whether it’s for a map or a chart citation.

The USA. Map. Arizona. National Geographic Archive, 2004

Canada’s Natural Reserves. Chart. Burnuby, Victoria, NCA, 2012.

Musical composition:

You must provide the composer’s name, the title of the musical piece (underlined), the number and key (if available), and any additional form information.

Beethoven, Ludwig van. Little Suite, op.4., no 2.

If you are citing a published score, it must include the name of the composer, underlined title, data when the composition has been written, place of publication, and date of publication.

Stenger, Michael. Sweet Memories. London: Salisbury Hill, 1996.

Painting, photography, sculpture, architecture, or other art form:

It must include the name of the artist (if available), the title of the artwork that is underlined, the date when it was created, the museum or a gallery, city where it is located.

Friedrich, Andy. Sad Painter. 1924. Amsterdam Arts Gallery Collection, NL.

Patents must include the inventor’s name, patent’s title, issuing country with the patent’s number, and the date it was issued.

Kiske, Michael. “Laser Improvement Methods Through Cardio Stimulation.” German Patent Office. 29234809. June 1993.

Performance (ballet, concert, musical, opera, play, theatrical performance):

Disney’s Alladin. By Ronny Dio and Sally King. Dir. Julia Gaynor. Music and lyrics by Shania Twain and Eric Vinaldo. National New York Theater. NYC, 8 June 2012.

Radio, Television:

Anything cited from radio and television must include the title of the episode underlined or in quotation marks, the underlined title of the program, the title of the series, the network name, the radio station or TV channel, the city location, and the broadcast date.

The LXDS Morning Show. By Terry Hall. LXDS Radio Station, Louisianna, 4 Sept. 2004.

Recording & Music CD, LP, magnetic tape:

A bibliography in a research paper may refer to multimedia sources like audio archives. An audio recording would require the name of the author, singer, editor, or composer, depending on the source. It should also include the song’s title in quotation marks, the title of the recording underlined, publication medium, edition or version, and place of publication. Here is an example of such type for a research paper bibliography in MLA:

The Orions. “Sadness”. Black Album. CD. Exclusive Management by the Megaforce Records, Los Angeles, CA. Mastered by Rick Rubin, Sony Sound Productions, NYC. MFR, 2004.

Software on floppy disk:

Commander Keen Game, 230, Diskette, vers. 2.0. IBM PC, 1994.

Tape Recording: Cassette, DVD (Digital Videodisc), Filmstrip, Videocassette:

Johnson, Michael. Living Through Stress and Anxiety. Cassette tape recording read by the author. New York: Little & Jones Publishing, Audio Div., 1997.

Unpublished dissertations, theses:

You must state the author’s name, the unpublished dissertation’s title, or a thesis in quotation marks for a bibliography. Add the “Diss.” or “MA thesis” label, the university’s name, and the year of publication as you use it for your research.

Eisenberg, Robert. “The Military Conflicts in the Middle East.” BA Thesis. Syracuse University, New York, 2022.

MLA Bibliography page sample

As a rule, the most important is to see how a typical Bibliography page would look in MLA style format. Here is the sample bibliography page with five different sources that relate to a research paper related to Healthcare and Nursing discipline. Remember to start your Bibliography page on the next page after your conclusion part of the final paragraph.

Johnson, Kendall. Trauma in the Lives of Children: Crisis and Stress Management         Techniques for Counselors, Teachers, and Other Professionals . Hunter House Publishers, 1998.

Levell, Jade. “Childhood Domestic Violence and Abuse.” Boys, Childhood Domestic         Abuse, and Gang Involvement , 2022, pp. 47–63, https://doi.org/10.1332/policypress/9781529219807.003.0004 .

Martin, Harold P. “Child Abuse and Child Development.” Child Abuse & Neglect , vol. 3, no. 2, 1979, pp. 415–421, https://doi.org/10.1016/0145-2134(79)90062-0 .

Naegle, Madeline A., and Carolyn Erickson D’Avanzo. Addictions & Substance Abuse:       Strategies for Advanced Practice Nursing . Prentice Hall Health, 2001.

“Recognize the Signs of Domestic Violence against Women.” Mayo Clinic , 14 Apr. 2022, www.mayoclinic.org/healthy-lifestyle/adult-health/in-depth/domestic-violence/art-20048397 .

As you can see, one has two books, two different academic journals, and a web page related to a famous medical clinic representing a trustworthy research source. It is only a reference bibliography sample. As you are looking for a source for your research paper, always think twice about whether it can help support your argument or provide a piece of important evidence. Once the answer is “yes,” think about introducing your source and adding your author’s voice to the research!

• Writing a Research Paper
• Research Paper Title
• Research Paper Sources
• Research Paper Problem Statement
• Research Paper Thesis Statement
• Hypothesis for a Research Paper
• Research Question
• Research Paper Outline
• Research Paper Summary
• Research Paper Prospectus
• Research Paper Proposal
• Research Paper Format
• Research Paper Styles
• AMA Style Research Paper
• MLA Style Research Paper
• Chicago Style Research Paper
• APA Style Research Paper
• Research Paper Structure
• Research Paper Cover Page
• Research Paper Abstract
• Research Paper Introduction
• Research Paper Body Paragraph
• Research Paper Literature Review
• Research Paper Background
• Research Paper Methods Section
• Research Paper Results Section
• Research Paper Discussion Section
• Research Paper Conclusion
• Research Paper Appendix
• Research Paper Bibliography
• APA Reference Page
• Annotated Bibliography
• Bibliography vs Works Cited vs References Page
• Research Paper Types
• What is Qualitative Research

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How to Write a Research Paper: Annotated Bibliography

• Anatomy of a Research Paper
• Developing a Research Focus
• Background Research Tips
• Searching Tips
• Scholarly Journals vs. Popular Journals
• Thesis Statement
• Annotated Bibliography
• Citing Sources
• Evaluating Sources
• Literature Review
• Academic Integrity
• Scholarship as Conversation
• Understanding Fake News
• Data, Information, Knowledge

What is an Annotated Bibliography?

UMary Writing Center

Check out the resources available from the  Writing Center . 

Write an Annotated Bibliography

What is an annotated bibliography?

It is a list of citations for various books, articles, and other sources on a topic. 

An annotation is a short summary and/or critical evaluation of a source.

Annotated bibliographies answer the question: "What would be the most relevant, most useful, or most up-to-date sources for this topic?"

 Annotated bibliographies can be part of a larger research project, or can be a stand-alone report in itself. 

Annotation versus abstracts 

An abstract is a paragraph at the beginning of the paper that discusses the main point of the original work. They typically do not include evaluation comments. 

Annotations can either be descriptive or evaluative. The annotated bibliography looks like a works cited page but includes an annotation after each source cited. 

Types of Annotations: 

Descriptive Annotations: Focuses on description. Describes the source by answering the following questions. 

Who wrote the document?

What does the document discuss?

When and where was the document written? 

Why was the document produced?

How was it provided to the public?

Evaluative Annotations: Focuses on description and evaluation. Includes a summary and critically assess the work for accuracy, relevance, and quality. 

Evaluative annotations help you learn about your topic, develop a thesis statement, decide if a specific source will be useful for your assignment, and determine if there is enough valid information available to complete your project.

What does the annotation include?

Depending on your assignment and style guide, annotations may include some or all of the following information. 

• Should be no more than 150 words or 4 to 6 sentences long. 
• What is the main focus or purpose of the work?
• Who is the intended audience?
• ​How useful or relevant was the article to your topic?
• Was there any unique features that useful to you?
• What is the background and credibility of the author?
• What are any conclusions or observations that your reached about the article?

Which citation style to use?

There are many styles manuals with specific instructions on how to format your annotated bibliography. This largely depends on what your instructor prefers or your subject discipline. Check out our citation guides for more information. 

Additional Information

Why doesn't APA have an official APA-approved format for annotated bibliographies?

Always consult your instructor about the format of an annotated bibliography for your class assignments. These guides provide you with examples of various styles for annotated bibliographies and they may not be in the format required by your instructor. 

Citation Examples and Annotations

Book Citation with Descriptive Annotation

Liroff, R. A., & G. G. Davis. (1981). Protecting open space: Land use control in the Adirondack Park. Cambridge, MA: Ballinger.

This book describes the implementation of regional planning and land use regulation in the Adirondack Park in upstate New York. The authors provide program evaluations of the Adirondack Park Agency’s regulatory and local planning assistance programs.

Journal Article Citation with Evaluative Annotation

Gottlieb, P. D. (1995). The “golden egg” as a natural resource: Toward a normative theory of growth management. Society and Natural Resources, 8, (5): 49-56.

This article explains the dilemma faced by North American suburbs, which demand both preservation of local amenities (to protect quality of life) and physical development (to expand the tax base). Growth management has been proposed as a policy solution to this dilemma. An analogy is made between this approach and resource economics. The author concludes that the growth management debate raises legitimate issues of sustainability and efficiency.

Examples were taken from http://lib.calpoly.edu/support/how-to/write-an-annotated-bibliography/#samples

Book Citation

Lee, Seok-hoon, Yong-pil Kim, Nigel Hemmington, and Deok-kyun Yun. “Competitive Service Quality Improvement (CSQI): A Case Study in the Fast-Food Industry.” Food Service Technology 4 (2004): 75-84.

In this highly technical paper, three industrial engineering professors in Korea and one services management professor in the UK discuss the mathematical limitations of the popular SERVQUAL scales. Significantly, they also aim to measure service quality in the fast-food industry, a neglected area of study. Unfortunately, the paper’s sophisticated analytical methods make it inaccessible to all but the most expert of researchers.

Battle, Ken. “Child Poverty: The Evolution and Impact of Child Benefits.”  A Question of Commitment: Children's Rights in Canada . Ed. Katherine Covell and R.Brian Howe. Waterloo, ON: Wilfrid Laurier University Press. 2007. 21-44.

             Ken Battle draws on a close study of government documents, as well as his own research as an extensively-published policy analyst, to explain Canadian child benefit programs.  He outlines some fundamental assumptions supporting the belief that all society members should contribute to the upbringing of children.  His comparison of child poverty rates in a number of countries is a useful wake-up to anyone assuming Canadian society is doing a good job of protecting children.  Battle pays particular attention to the National Child Benefit (NCB), arguing that it did not deserve to be criticized by politicians and journalists.  He outlines the NCB’s development, costs, and benefits, and laments that the Conservative government scaled it back in favour of the inferior Universal Child Care Benefit (UCCB).  However, he relies too heavily on his own work; he is the sole or primary author of almost half the sources in his bibliography.  He could make this work stronger by drawing from others' perspectives and analyses.  However, Battle does offer a valuable source for this essay, because the chapter provides a concise overview of government-funded assistance currently available to parents.  This offers context for analyzing the scope and financial reality of child poverty in Canada.

Journal Article Example

  Kerr, Don and Roderic Beaujot. “Child Poverty and Family Structure in Canada, 1981-1997.”  Journal of Comparative Family Studies  34.3 (2003): 321-335.

             Sociology professors Kerr and Beaujot analyze the demographics of impoverished families.  Drawing on data from Canada’s annual Survey of Consumer Finances, the authors consider whether each family had one or two parents, the age of single parents, and the number of children in each household.  They analyze child poverty rates in light of both these demographic factors and larger economic issues.  Kerr and Beaujot use this data to argue that. 

Examples were taken from  http://libguides.enc.edu/writing_basics/ annotatedbib/mla

Check out these resources for more information about Annotated Bibliographies. 

• Purdue Owl- Annotated Bibliographies
• University of North Carolina at Chapel Hill- Annotated Bibliographies
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• Next: Citing Sources >>
• Last Updated: Apr 4, 2024 5:51 PM
• URL: https://libguide.umary.edu/researchpaper

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APA Sample Paper

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Note: The APA Publication Manual, 7 th Edition specifies different formatting conventions for student  and  professional  papers (i.e., papers written for credit in a course and papers intended for scholarly publication). These differences mostly extend to the title page and running head. Crucially, citation practices do not differ between the two styles of paper.

However, for your convenience, we have provided two versions of our APA 7 sample paper below: one in  student style and one in  professional  style.

Note: For accessibility purposes, we have used "Track Changes" to make comments along the margins of these samples. Those authored by [AF] denote explanations of formatting and [AWC] denote directions for writing and citing in APA 7. 

APA 7 Student Paper:

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In-Text Citations

In scholarly writing, it is essential to acknowledge how others contributed to your work. By following the principles of proper citation, writers ensure that readers understand their contribution in the context of the existing literature—how they are building on, critically examining, or otherwise engaging the work that has come before.

APA Style provides guidelines to help writers determine the appropriate level of citation and how to avoid plagiarism and self-plagiarism.

We also provide specific guidance for in-text citation, including formats for interviews, classroom and intranet sources, and personal communications; in-text citations in general; and paraphrases and direct quotations.

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How to do Research for a College Paper

• Overview of the Research Process
• STEP 1: Choose a Topic
• STEP 2: Brainstorming and Background Information
• STEP 3: Identify Research Questions
• STEP 4a: Find Books
• STEP 4b: Find Articles
• STEP 5: Refine Your Search
• STEP 6: Evaluate Sources

Annotated Bibliographies

• APA and MLA Format

Annotated Bibliography Survey

What is an annotated bibliography.

An annotated bibliography is a way of evaluating sources.

• They show that you have read a source and that you understand the content.
• They also show the reader how the sources are useful to the research.

A basic annotation contains:

• a citation in the correct format (ex. MLA or APA).
• a comment about the author and their authority on the topic. 
• an explanation of the main concepts of the source and why it is relevant to your research.

View the links below to learn more about how to create an annotated bibliography and see examples.

• Annotated Bibliographies | The Writing Lab & The OWL at Purdue Provides definitions about, reasons for, and formats of annotated bibliographies. Written by Dana Bisignani and Allen Brizee from The Writing Lab & The OWL at Purdue, Purdue University.
• Annotated Bibliography Example | The Writing Lab & The OWL at Purdue A discussion about an example of an annotated bibliography, including thoughts to keep in mind while writing an annotation. Written by Dana Bisignani and Allen Brizee from The Writing Lab & The OWL at Purdue, Purdue University.
• << Previous: STEP 7: Cite Your Sources
• Next: APA and MLA Format >>
• Last Updated: Jan 22, 2024 8:46 AM
• URL: https://libguides.tridenttech.edu/research

• How to Cite
• Language & Lit
• Rhyme & Rhythm
• The Rewrite
• Search Glass

How to Make Bibliography Cards

Organizing your research can make the research paper writing process easier. Nowadays, you may keep track of your research electronically through your word processing program, an electronic spreadsheet or other means. An older method is to use 3-by-5-inch bibliography and note cards to organize the sources you find and the information in them. Your teacher may assign these cards to teach you how to do research and cite your sources.

Citation Information

The bibliography card includes the citation information, which you will later use to create your research paper’s bibliography, or Works Cited page. Create a new bibliography card each time you find a new source. Write the author’s last name, followed by a comma and first name, and then the title. If the source has no author, start with the title. Lastly, add publication information, such as the city of publication and the publisher of a book or the journal’s name, volume and issue. For example, to cite a book in MLA Style, use the following format: Author, Name. Title of book (italicized). City: Publisher, Year of Publication.

Location and Summary

The front of the bibliography card should also include the location of the source. For library sources, write the name of the library and the call number. If you found the source online, write the URL. This brief location information should help you easily find the source again. Then, on the back of the bibliography card, write a brief summary about the source so that you remember why you chose that source for your research paper.

Note Cards and Organization

The bibliography card also helps you organize your notes from the source on the note cards. Each note card includes one fact from the source. It may be a quotation, a paraphrase or a summary. To organize and keep track of your research, write a letter on each bibliography card, and then, on each note card for that source, write the same letter and a number. For example, if the bibliography card is "A," then the first note card is "A1," and the second is "A2."

Final Tips and Advice

Instead of 3-by-5-inch cards, you could also choose 4-by-6-inch cards if you need more room, but always use the same size for both the bibliography and note cards so you can keep them together more easily. You could also use different colors for different types of sources or information. Write clearly and neatly so you can read the information long after you have written it. Mistakes can be costly, so proofread each card. For example, an error in the bibliographic information can cause you to make a mistake on the Works Cited page.

Melissa McDonald has been writing about education since 2006. Her work has appeared in “AdjunctNation,” “JCW” and “Honor Cord” e-zine. She holds a Master of Arts in English from the University of Louisiana at Lafayette and currently works in higher education as a writing consultant. Beyond her work as educator and writer, McDonald volunteers as a judge in both local and national writing competitions for high school and college students.

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• 28 May 2024

Heed lessons from past studies involving transgender people: first, do no harm

• Mathilde Kennis 0 ,
• Robin Staicu 1 ,
• Marieke Dewitte 2 ,
• Guy T’Sjoen 3 ,
• Alexander T. Sack 4 &
• Felix Duecker 5

Mathilde Kennis is a researcher in cognitive neuroscience and clinical psychological science at Maastricht University, the Netherlands.

You can also search for this author in PubMed   Google Scholar

Robin Staicu is a neuroscientist and specialist in diversity, equity and inclusion at Maastricht University, the Netherlands.

Marieke Dewitte is a sexologist and assistant professor in clinical psychological science at Maastricht University, the Netherlands.

Guy T’Sjoen is a clinical endocrinologist and professor in endocrinology at Ghent University Hospital, Belgium, the medical coordinator of the Centre for Sexology and Gender at Ghent University Hospital, and one of the founders of the European Professional Association for Transgender Health.

Alexander T. Sack is a professor in cognitive neuroscience at Maastricht University, the Netherlands.

Felix Duecker is an assistant professor in cognitive neuroscience at Maastricht University, the Netherlands.

You have full access to this article via your institution.

Over the past few decades, neuroscientists, endocrinologists, geneticists and social scientists have conducted numerous studies involving transgender people, meaning those whose gender identity does not conform to that typically associated with the sex to which they were assigned at birth. Justifications for doing such research have shifted over the years and, today, investigators are increasingly focused on assessments of transgender people’s mental health or the impact of hormone therapies.

But such work raises challenges. Despite researchers’ best intentions, these studies can perpetuate stigmas and make it even harder for transgender people to access appropriate medical care.

Here we focus on neuroscientific approaches to the study of transgender identity to explore how investigators might navigate these concerns.

Brain scanning

In 1995, neuroscientists at the Netherlands Institute for Brain Research in Amsterdam published findings from a post-mortem study, which included six transgender individuals 1 . They found that the volume of part of the brain’s hypothalamus — called the bed nucleus of the stria terminalis, which tends to be larger in men than in women — corresponded to the gender identity of the transgender individuals, not to their sex assigned at birth. Although the data were only correlative, the researchers suggested that people identify as transgender because of changes in the brain that happen before birth — in other words, that someone can be born with a male-typical body and brain characteristics more typical of a female brain, and vice versa.

Sex and gender in science

Since it was published, the paper has been cited more than 1,000 times, and at least a dozen researchers have probed this theory and related ones using tools such as structural and functional magnetic resonance imaging (MRI).

Although the results of these analyses have been inconsistent, several ideas have nonetheless arisen about a neurobiological basis for gender dysphoria — the distress associated with a person’s gender identity not aligning with the sex they were assigned at birth. These include the ‘own-body perception’ theory 2 , which proposes that a reduced structural and functional connectivity between certain brain networks is responsible. (Previous work has associated these networks with brain regions thought to be involved in people’s ability to link their own body to their sense of self 3 .)

As analytical tools and methods advance, brain research is becoming more sophisticated. The number of neuroscientific studies that include transgender participants has increased considerably since 1991 (see ‘On the rise’).

Some neuroscientists are using functional MRI to study the effects of hormone therapy on brain structure 4 and to examine cognitive processes such as face perception 5 . Others are applying machine-learning techniques to establish whether features in brain scans of cis- and transgender people correlate with their gender identity 6 . Researchers are also trying to assess whether particular features identified in brain scans make it more likely that transgender individuals will benefit from gender-affirming hormone therapy 7 . And some are conducting ‘mega-analyses’ — pooling the brain scans of hundreds of participants — to identify brain characteristics that are specific to transgender people 8 .

Help or harm?

One concern arising from such studies is that neuroscientific findings related to transgender identity could make it even harder for some people to access medical treatment that could help them.

In countries or regions where gender-affirming medical treatment is available, individuals often need a diagnosis of ‘gender dysphoria’ or ‘gender incongruence’ to be eligible for hormone therapy or gender-affirming surgery, and to be reimbursed for such treatments. Results from brain scans could be included in the suite of measurements used to assess whether someone is experiencing gender dysphoria or incongruence.

Those in favour of such requirements argue that it is necessary to prevent people taking irreversible steps that they might regret. Hormonal therapy can have adverse effects on fertility, for instance 9 . However, many transgender people argue that whether someone can receive gender-affirming hormone therapy or other treatment shouldn’t depend on a health-care practitioner deciding that they experience ‘enough’ gender dysphoria to be eligible 10 . The current approach, combined with a shortage of specialists qualified to make such diagnoses, has been linked to long waiting lists. In the Netherlands, waiting times can be more than two years .

A second possibility is that neuroscientific findings related to transgender identity will fuel transphobic narratives 11 .

Take the debate on social media and other platforms about gendered public spaces in countries such as the United States , the United Kingdom and Brazil 12 . Some people argue that allowing transgender women to access infrastructure, such as public toilets or women’s prisons, threatens the safety of “real women” . Neuroscientific research is sometimes misused to bolster flawed claims about what ‘real’ means.

Moreover, such studies could exacerbate tensions between scientific and transgender communities.

Scientists are aiming to identify brain characteristics that are specific to transgender people. Credit: Alain Jocard/AFP/Getty

Although cis- and transgender researchers have taken steps to improve people’s understanding, there is a history of tension between the scientific and transgender communities 13 . In the late 1980s, for instance, a sexologist argued that trans women who are mainly attracted to women experience sexual arousal from their own expression of femininity. He described their feelings of gender dysphoria as resulting from paraphilia — a sexual interest in objects, situations or individuals that are atypical 14 . This theory has not held up under broader scientific scrutiny 15 , but it has become notorious in the transgender community and, from our discussions with transgender people and discussions by other groups 16 , it is clear that such studies have reduced transgender people’s trust in science.

How four transgender researchers are improving the health of their communities

In 2021, for example, a neuroimaging study with transgender participants was suspended in the United States after backlash from the transgender community. The study would have involved showing participants images of themselves wearing tight clothes, with the intention of triggering gender dysphoria — an experience that is associated with depression, anxiety, social isolation and an increased risk of suicide. The study’s researchers had acquired ethical approval from their research institute and obtained informed consent from the participants. Yet they had failed to anticipate how the transgender community would perceive their experimental procedure.

In 2022, to learn more about how transgender people view current neuroscientific approaches to the study of transgender identity, we conducted focus-group interviews that lasted for three hours with eight transgender participants — all of whom had differing levels of knowledge about the topic.

The group expressed concern that studies that look for a neurological basis to transgender identities could have a pathologizing effect. “I think questions of aetiology are just inherently wrong,” one participant said. “We don’t ask ‘Why is someone’s favourite colour blue?’. These are questions that come from wanting to pathologize.” Participants also agreed that a biological-determinist approach does not do justice to the complex and layered experience of identifying as transgender.

Decades of work aimed at establishing how science can benefit minority groups 17 suggest that neuroscientists and other scholars could take several steps to ensure they help rather than harm transgender, non-binary and intersex individuals and other people who don’t conform to narrow definitions around sex and gender. Indeed, the four actions that we lay out here are broadly applicable to any studies involving marginalized groups.

Establish an advisory board. Researchers who work with transgender participants should collaborate with an advisory board that ideally consists of transgender people and members of other groups with relevant perspectives, including those who have some understanding of the science in question. Funding agencies should support such initiatives, to help prevent further distrust being sown because of how studies are designed.

Set up multidisciplinary teams. Researchers trained in neuroscience will view phenomena such as transgender identity through a different lens from, say, those trained in psychology. To prevent the outcomes of neuroscientific and other studies being described and published in an overly deterministic and simplistic way 18 , research teams should include social scientists. Ideally, such collaborations would also include transgender researchers or others with diverse gender identities, because their input would help to prevent a cis-normative bias in study design and in the interpretation of results. Indeed, our own group has benefited from this diversity (one of us is transgender).

Prioritize research that is likely to improve people’s lives. Neuroscientists and others engaged in research involving transgender participants, non-binary people or individuals with diverse gender identities should prioritize research questions that are likely to enhance the health of these groups. Although the applications of basic research can be hard to predict, investigations into the neurobiological impacts of hormone treatment on the brain, for instance, could be more directly informative to health-care practitioners and transgender individuals than might investigations into the underlying bases of transgender identity.

Rethink how ethical approval is obtained. Ethical boards at universities typically consist of scientists with diverse backgrounds. But it is unrealistic to expect them to be educated on the sensitivities of every minority group, whether in relation to gender, religion, ethnicity or anything else. One way to address this problem is for ethical boards to require researchers to state what feedback and other information they have gathered through community engagement. A university’s ethical review committee could then evaluate whether the researchers have done enough to understand and address people’s concerns and sensitivities.

Our aim is not to halt scientific enquiry. But when it comes to transgender identity, knowledge cannot be pursued in isolation from the many societal factors that shape how that knowledge is received and acted on.

Nature 629 , 998-1000 (2024)

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