APA (7th ed.) Zitazioa
Greer, T. H. (1972). A brief history of Western man (2nd.ed.). Harcourt.
Chicago Style (17th ed.) Zitazioa
Greer, Thomas H. A Brief History of Western Man. 2nd.ed. New York: Harcourt, 1972.
MLA (9th ed.) Zitazioa
Greer, Thomas H. A Brief History of Western Man. 2nd.ed. Harcourt, 1972.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.