Cita APA (7th ed.)
Oliver, R., & Fagan, B., M. (1975). Africa in the iron age. Cambridge.
Cita Chicago (17th ed.)
Oliver, Roland, i Brian Fagan, M. Africa in the Iron Age. London: Cambridge, 1975.
Cita MLA (9th ed.)
Oliver, Roland, i Brian Fagan, M. Africa in the Iron Age. Cambridge, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.