The fastest way to add a citation in Word

Open the document where you want the citation. Click at the end of the sentence or phrase you want to cite, then go to the References tab at the top of Word. Click Insert Citation (it looks like quotation marks with a plus sign). Choose Add New Source if you haven't cited this source before, or pick an existing source from the list if you have.

A dialog box opens where you fill in the author, title, publication date, and other details depending on your citation style. Word stores this information and can reuse it throughout your document. Once you save the source, the citation appears in your text in the format you selected — usually as a number in brackets or a parenthetical note with the author's name and year.

The citation itself is just a placeholder. Word automatically generates your full bibliography at the end of the document based on all the sources you've cited, so you don't have to type it manually.

Key Takeaways

  • Citations are inserted from the References tab using the Insert Citation button, and you can add a new source or pick one you've already entered.
  • Word stores source information once and reuses it, so you only type author and title details the first time you cite something.
  • Your citation style (MLA, APA, Chicago, or others) controls how citations look in your text and how the bibliography is formatted.
  • The bibliography is generated automatically from your sources and updates whenever you add or remove a citation.
  • You can change your citation style at any time and Word will reformat all citations and the bibliography to match.

Choosing and changing your citation style before you start

Before you insert your first citation, decide which style your document needs. Go to References and look for the Style dropdown menu (it usually shows "APA" or "MLA" by default). Click it to see your options: APA, MLA, Chicago, Harvard, and others depending on your version of Word.

The style you pick controls two things: how citations appear in your text (some use numbers, some use author-year, some use footnotes) and how your bibliography is formatted at the end. If you change your mind later, you can switch styles anytime. Word will automatically reformat every citation and your entire bibliography to match the new style — you don't have to redo anything manually.

Different fields expect different styles. Academic papers often use MLA or APA. History and some humanities use Chicago style. Check your assignment or publication guidelines to see which one is required.

Adding a new source the first time you cite it

Click where you want the citation in your text. Go to References and click Insert Citation, then select Add New Source. A dialog box appears with fields for the source type (book, website, journal article, etc.) at the top.

Choose the source type first — this changes which fields appear below. For a book, you'll see Author, Title, Year, Publisher, and City. For a website, you'll see Author, Name of Webpage, Website Name, and Access Date. Fill in the fields that apply to your source. Fields marked with a red asterisk are required; others are optional but recommended if the information is available.

Once you click OK, the citation appears in your text and Word saves the source. The next time you want to cite the same book, article, or website, you won't have to re-enter all that information — just click Insert Citation and pick it from the list.

Inserting a citation you've already added

If you've already cited a source earlier in your document, you don't need to enter its details again. Click where you want the new citation, go to References, click Insert Citation, and you'll see your previous sources listed. Click the one you want and it appears instantly in your text.

Word keeps track of all sources you've used in the current document. If you're working on multiple documents, each one has its own source list, so a source from Document A won't automatically show up in Document B. You can copy sources between documents using the Manage Sources button (next to Insert Citation), but the simpler approach is to re-enter the source in the new document.

Generating and updating your bibliography

Your bibliography is created automatically once you've inserted at least one citation. Go to the end of your document where you want the bibliography to appear, click References, then click Bibliography. A menu shows you pre-formatted bibliography styles — pick one and it inserts a complete list of all your sources in that format.

The bibliography updates automatically whenever you add or remove a citation. If you add a new source midway through writing, the bibliography refreshes on its own. If you delete a citation, that source disappears from the bibliography. You don't have to regenerate it manually.

If you need to edit the bibliography after it's inserted — for example, to change the title or adjust spacing — you can click into it and edit the text directly. However, if you add more citations later, those edits may be overwritten when the bibliography updates. For that reason, it's safer to make final formatting changes only after you've finished adding all your citations.

Editing or removing a citation

To change a citation that's already in your text, right-click on it. A menu appears with options to Edit Citation or Edit Source. Choose Edit Citation if you want to add a page number or other detail to just that one instance of the citation. Choose Edit Source if you need to fix the author name or other information — this change will update every citation of that source throughout your document.

To remove a citation, click on it and press Delete. The citation disappears from your text and from the bibliography. If that was the only citation of that source, the source is removed from your source list as well.

Using Manage Sources to organize and reuse sources

If you're working on a long document or multiple related documents, the Manage Sources button (in the References tab) lets you see all your sources in one place. Click it to open a dialog showing every source you've cited, with options to edit, delete, or copy sources.

The Copy button is useful if you're starting a new document and want to bring sources from your previous work. Select the sources you want, click Copy, then open your new document, click Manage Sources again, and click Paste. This saves you from re-entering sources you've already documented.

You can also create a Master List of sources — a personal library of citations you use frequently. This is most useful if you're writing multiple papers on the same topic and want to reuse the same sources without re-entering them each time.

Frequently Asked Questions

Can I change my citation style after I've already cited everything?

Yes. Go to References, click the Style dropdown, and pick a new style. Word automatically reformats every citation in your text and regenerates your bibliography to match. You don't have to redo any citations manually.

What if the source information I need isn't in the dialog box?

Most source types have optional fields beyond the required ones. Click the dropdown that says "Show All Bibliography Fields" or similar (exact wording varies by Word version) to see additional fields like DOI, URL, or edition number. Fill in whatever information is available for your source.

Does Word automatically add citations from websites I visit?

No. Word does not track websites you browse. You have to manually enter each source's information into Word, or copy and paste the source details if you have them from another document or citation tool.

Can I use Word citations if I'm writing in a different language?

Yes. The citation styles themselves (APA, MLA, Chicago) work the same way regardless of language. However, some fields like publisher location or publication name will be in your source's original language, and Word will format them as you enter them.

What happens to my citations if I save my document as a PDF?

Citations and the bibliography convert to regular text in the PDF, so they remain visible and formatted correctly. However, they lose their interactive properties — you can no longer edit them or update the bibliography. For that reason, keep your original Word document if you think you'll need to make changes later.