Cita APA (7th ed.)

Oliver, R., & Fage, J. (1972). A short history of Africa. Penguin Books.

Cita Chicago (17th ed.)

Oliver, Roland, i J.D Fage. A Short History of Africa. England: Penguin Books, 1972.

Cita MLA (9th ed.)

Oliver, Roland, i J.D Fage. A Short History of Africa. Penguin Books, 1972.