APA (7th ed.) Citation

Seligman, C. G. (1957). Races of Africa (3rd ed.). Oxford University Press.

Chicago Style (17th ed.) Citation

Seligman, Charles Gabriel. Races of Africa. 3rd ed. London: Oxford University Press, 1957.

MLA (9th ed.) Citation

Seligman, Charles Gabriel. Races of Africa. 3rd ed. Oxford University Press, 1957.