Structure to follow to cite a Wikipedia article in APA style: Article title. (Year last updated). Retrieved Month Day, Year, from URL. Reference example: Special relativity. (2018). Retrieved August 5, 2019, from https://en.wikipedia.org/wiki/Special_relativity.

How to cite Wikipedia in APA Style In APA Style (7th edition), only the first word of the title is capitalized, and there is no period after the URL. The in-text citation includes the title of the article (with title-case capitalization, and shortened if necessary) and the year.

If you need to cite Wikipedia in APA format, be aware that it’ll look slightly different from a conventional APA website citation. A Wikipedia citation in APA format includes the Wikipedia page title, version date, website, and URL specific to the entry version you’re referencing.