The fastest way to add a reference in Word

To add a reference in Word, go to the References tab at the top of the ribbon, click Insert Citation, and choose either to cite an existing source from your list or create a new one. Word will insert the citation in your document in the format you selected — usually at the end of the sentence or paragraph where your cursor is positioned. The citation appears as a bracketed number, author name, or footnote depending on your chosen style.

If you have not yet set up a citation style, Word defaults to showing a placeholder. You can change the style later by clicking the style dropdown on the References tab — common options include MLA, APA, Chicago, and Harvard. Once you have added at least one citation, Word can automatically generate a bibliography at the end of your document by clicking Bibliography on the References tab and selecting a layout.

Key Takeaways

  • The References tab contains all the tools you need to insert citations and build a bibliography without leaving Word.
  • You can add a new source while citing it, or build a source list first and cite from it later.
  • Word automatically formats all your citations and bibliography to match your chosen style — MLA, APA, Chicago, or others.
  • If you need to edit a source after citing it, Word updates every citation that uses that source throughout your document.

Creating a new source while you write

The simplest workflow is to add sources as you write. Click the References tab, then click Insert Citation. A dropdown menu appears. At the bottom, select Add New Source.

A dialog box opens asking for source details. The fields change depending on what type of source you are citing — a book, journal article, website, or other format. Fill in what you know: author name, title, publication year, and URL if applicable. Word requires at least the author and title to create a citation, though more detail makes your bibliography stronger. Click OK when you are done, and Word inserts the citation into your document at your cursor position.

The source is now saved in your document's source list. The next time you cite the same book or article, you can click Insert Citation and select it from the list instead of re-entering the information.

Building a source list before you start writing

If you prefer to gather all your sources first, you can build a source list without inserting any citations yet. Click References, then click the small arrow next to Insert Citation. Select Manage Sources.

The Source Manager window opens. Click New to add a source without citing it. Fill in the source details the same way you would when adding a source during writing. Click OK, and the source appears in your Master List on the left side of the Source Manager. You can add as many sources as you need this way.

Once your sources are saved, close the Source Manager and write your document. When you reach a point where you need a citation, click Insert Citation and select the source from your list. Word inserts it in the correct format immediately.

Choosing and changing your citation style

Word comes with several built-in citation styles. The style you choose determines how citations appear in your text and how your bibliography is formatted. Click the Style dropdown on the References tab to see your options. Common styles include APA (author-date format, used in social sciences), MLA (author-page format, used in humanities), Chicago (footnote or author-date format, used in history and some other fields), and Harvard (similar to APA).

You can change your style at any time, even after you have added citations. Click the Style dropdown and select a different format. Word automatically reformats every citation and your bibliography to match the new style. This means you can write in one style and switch to another if your instructor or publication requires it.

If none of the built-in styles match what you need, you can create a custom style, though this requires more advanced Word knowledge. For most academic and professional writing, one of the standard styles will work.

Generating and placing your bibliography

Once you have added citations throughout your document, you can create a bibliography — a formatted list of all the sources you cited. Click where you want the bibliography to appear, usually at the end of your document. Click the References tab, then click Bibliography.

A dropdown menu shows several layout options: a simple list, a list with headings, or a list formatted as a table. Select the layout you prefer. Word inserts a complete bibliography formatted in your chosen citation style. Every source you cited appears in the list, and Word alphabetizes it automatically.

If you add or remove citations after inserting your bibliography, you can update it by right-clicking the bibliography and selecting Update Field. Word scans your document for all citations and refreshes the bibliography to match.

Editing and removing sources

If you need to change information about a source after you have cited it, click References, then click the arrow next to Insert Citation, and select Manage Sources. Find the source in the list, select it, and click Edit. Change the details you need to update and click OK. Word updates every citation of that source throughout your document.

To remove a citation from your document, click the citation in your text and press Delete. The citation disappears, but the source remains in your source list in case you want to cite it again later. If you want to remove a source from your source list entirely, open the Source Manager, select the source, and click Delete. This does not affect any citations already in your document — they remain formatted correctly.

Troubleshooting common citation problems

If a citation appears as a placeholder or shows an error, it usually means Word is missing required information about the source. Open the Source Manager, find the source, click Edit, and fill in any blank fields. Author and title are the minimum required.

If your bibliography does not update when you add new citations, right-click it and select Update Field. A dialog box asks whether to update page numbers only or the entire bibliography — select Update entire table to include new sources.

If citations are not appearing in the style you selected, check the Style dropdown on the References tab to confirm your choice is still active. Switching between styles sometimes requires you to click the dropdown again and reselect your preferred format.

Frequently Asked Questions

Can I cite a source that does not have an author?

Yes. If a source has no author, use the title as the author field. For websites, you can use the organization name. Word requires at least one identifier to create a citation, so the title or organization name fills that role.

What happens if I delete a citation from my document?

The citation is removed from your text, but the source stays in your source list. If you cite that source again later, you can select it from your list without re-entering the information. The source only disappears from your bibliography the next time you update it.

Can I use multiple citation styles in the same document?

No. Word applies one style to all citations in a document. If you need different styles for different sections, you would need to create separate documents and combine them later, or manually format some citations outside of Word's citation system.

How do I cite a source that appears in another source?

Word calls this a "quoted in" citation. When you create a new source, look for a field labeled Quoted in or Cited in depending on your version. Enter the source where you found the quote, and Word formats it as a secondary citation in your bibliography.