How to Cite a Source With No Author (APA, MLA, Chicago)

Learning how to cite a source with no author is a common challenge, because so many real sources, web pages, reports, encyclopedia entries, and corporate documents, simply do not name a person. The good news is that every major style follows the same basic logic: when there is no individual author, you move the next most identifiable element, usually the title or the organization that produced the work, into the author position. This guide walks through that move in APA, MLA, and Chicago, shows how shortened titles work in your in-text citations, explains when a group or organization counts as the author, and clarifies the important difference between an anonymous source and a source whose author is simply unknown.

The core rule: move the title (or organization) to the author position

When no author is listed, do not write “Anonymous” by default and do not leave the slot blank. Instead, the element that begins your reference entry shifts. In most cases the title moves up to where the author normally goes, which also means the title is what alphabetizes the entry on your reference list or works cited or bibliography page. If a company, agency, association, or other group clearly produced the work, that organization takes the author position instead. Knowing how to handle a missing author is one of the most practical parts of learning how to cite sources, and it pairs naturally with knowing what to do when there is also no publication date.

Anonymous vs. unknown author

These two cases look similar but are treated differently. A source is anonymous only when the work itself explicitly lists the author as “Anonymous.” In that rare situation, you use the word Anonymous in the author position exactly as you would a name. A source has an unknown author when you cannot find an author at all, which is far more common. For an unknown author, you never invent “Anonymous”; you move the title up instead. Mistaking one for the other is a frequent error, so always check whether the byline literally says Anonymous before using it.

APA 7th edition: no author

In APA, when there is no author, the title moves to the author position and the date follows. Your in-text citation then uses a shortened version of that title. A crucial detail many students miss is that the formatting of the shortened title must match the reference: titles of standalone works (books, reports, whole websites) are italicized, while titles of parts of larger works (articles, web pages, chapters) go in quotation marks. You can assemble either form correctly with the APA citation generator, and the rules below also appear in our broader APA format guide.

Because the example above is a standalone web document, the title is italicized in both the reference and the shortened in-text citation. For a page that is part of a larger site, you would use quotation marks in-text instead. Note that APA in-text titles use title case even though the reference list uses sentence case; for more on this distinction, see our guide to APA in-text citations.

MLA 9th edition: no author

MLA handles a missing author the same way structurally: skip the author element and begin the works-cited entry with the title. Your in-text citation then uses a shortened title rather than a last name, along with the page number or location if one exists. MLA uses no comma between the title and the page number, and it never includes a year in the parenthetical. Remember that MLA titles use title case but lowercase all prepositions regardless of length. You can build entries quickly with the MLA citation generator, and the structure is covered in detail in our MLA format guide.

The shortened in-text title should begin with the same word that starts the full title, so your reader can find the entry alphabetized on the MLA works cited page. Match the formatting too: a quoted article title stays in quotation marks when shortened, while an italicized standalone title (such as an entire book or website with no author) stays italicized. For more on building these references, see our overview of in-text citations across styles.

Chicago 17th/18th edition: no author

Chicago follows the same principle in both its systems. In notes and bibliography style, the title leads the note and the bibliography entry when no author exists. In author-date style, the title (or its first few words) takes the author slot in the parenthetical reference. Use the Chicago citation generator to format either variant, and consult our Chicago style guide for the full picture.

When a group or organization is the author

Many sources that seem to have “no author” actually have a corporate or group author. Government agencies, nonprofits, companies, and associations frequently publish reports and web pages under the organization’s name rather than an individual’s. In that case, treat the organization as the author, do not move the title up. This is especially common for a government website, a corporate report, or an entry on a reference site.

In APA you can introduce an abbreviation for a long group name on first use and shorten it afterward, much like the et al. shortening for multiple human authors that we explain in what does et al. mean. When the same organization is both author and publisher in MLA, you may omit the publisher to avoid repetition. For reference works specifically, see our guide to citing an encyclopedia, which often combines a missing author with a group publisher.

Common mistakes to avoid

• Writing “Anonymous” for an unknown author. Only use Anonymous when the source itself names the author that way. Otherwise, move the title up.
• Mismatching title formatting. Your shortened in-text title must use the same italics or quotation marks as the full reference entry.
• Forgetting alphabetization. Title-led entries alphabetize by the first significant word, ignoring “A,” “An,” and “The.”
• Missing a group author. Before moving the title up, double-check whether an organization produced the work.
• Dropping the date too. A missing author is separate from a missing date; if there is also no date, see our guide on how to cite a source with no date and use “n.d.” in APA.

Putting it together

A missing author is almost never a dead end. Decide first whether the work was produced by an organization (use it as the author) or has no identifiable author at all (move the title up). Then build a matching in-text citation with a shortened title, keeping italics and quotation marks consistent with the reference. The same logic carries over to specific formats like a website, a Wikipedia article, or a PDF. When you want to skip the manual formatting entirely, run your details through the APA, MLA, or Chicago generators and let the tool place the title or organization in the author position for you.