Cita APA (7a ed.)

Gann, L. H., & Duignan, P. (1962). White settlers in tropical Africa. Penguin Books.

Cita Chicago Style (17a ed.)

Gann, Lewis H., y Peter Duignan. White Settlers in Tropical Africa. Baltimore ; Victoria: Penguin Books, 1962.

Cita MLA (9a ed.)

Gann, Lewis H., y Peter Duignan. White Settlers in Tropical Africa. Penguin Books, 1962.