APA (7th ed.) Zitazioa
Cohen, J. (2004). The penis book. Broadway Books.
Chicago Style (17th ed.) Zitazioa
Cohen, Joseph. The Penis Book. New York: Broadway Books, 2004.
MLA (9th ed.) Zitazioa
Cohen, Joseph. The Penis Book. Broadway Books, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.