APA (7th ed.) Zitazioa
Oliver, R. (1981). Africa since 1800 (3rd ed.). Cambridge.
Chicago Style (17th ed.) Zitazioa
Oliver, Roland. Africa Since 1800. 3rd ed. New York: Cambridge, 1981.
MLA (9th ed.) Zitazioa
Oliver, Roland. Africa Since 1800. 3rd ed. Cambridge, 1981.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.