Cita APA (7a ed.)

Gibbs, J. L. (1966). Peoples of Africa. Holt, Rinehart and Winston.

Cita Chicago Style (17a ed.)

Gibbs, James L. Peoples of Africa. New York [etc.]: Holt, Rinehart and Winston, 1966.

Cita MLA (9a ed.)

Gibbs, James L. Peoples of Africa. Holt, Rinehart and Winston, 1966.