Cita APA (7th ed.)

Oliver, R. (1981). Africa since 1800 (3rd ed.). Cambridge.

Cita Chicago (17th ed.)

Oliver, Roland. Africa Since 1800. 3rd ed. New York: Cambridge, 1981.

Cita MLA (9th ed.)

Oliver, Roland. Africa Since 1800. 3rd ed. Cambridge, 1981.