Cita APA (7th ed.)

Gann, L. H., & Duignan, P. (1967). Burden of empire: An appraisal of Western colonialism in Africa south of the Sahara. F. A. Praeger.

Cita Chicago (17th ed.)

Gann, Lewis H., i Peter Duignan. Burden of Empire: An Appraisal of Western Colonialism in Africa South of the Sahara. New York: F. A. Praeger, 1967.

Cita MLA (9th ed.)

Gann, Lewis H., i Peter Duignan. Burden of Empire: An Appraisal of Western Colonialism in Africa South of the Sahara. F. A. Praeger, 1967.