What should I do when the author or publication date is unknown?
Instead of the author’s name, include the first few words of the work’s title in the in-text citation. Enclose the title in double quotation marks when citing an article, web page or book chapter. Italicize the title of periodicals, books, and reports.
No publication date
If the publication date is unknown, use “n.d.” (no date) instead. For example: (Johnson, n.d.).