APA (7th ed.) Zitazioa
Murphy, J. E. (1972). History of African civilization. A Delta Book.
Chicago Style (17th ed.) Zitazioa
Murphy, Jefferson E. History of African Civilization. New York: A Delta Book, 1972.
MLA (9th ed.) Zitazioa
Murphy, Jefferson E. History of African Civilization. A Delta Book, 1972.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.