How do I cite sources that don’t have a date?
Answer
APA style instructs you to use the abbreviation n.d. for no date.
Chicago style instructs you to use the abbreviation n.d. for no date.
MLA style instructs you to leave out the date if it’s not listed.
CSE style instructs you to use [date unknown] to indicate there isn’t a date specified.
AMA style instructs you to use date unknown in place of publication year for books with no known date, but for all other types of sources, provide an access date instead.
If you need further help, contact a librarian.