Cita APA (7a ed.)

Seligman, C. (1966). Races of Africa (4th ed.). O.U.Pr..

Cita Chicago Style (17a ed.)

Seligman, C.G. Races of Africa. 4th ed. London: O.U.Pr., 1966.

Cita MLA (9a ed.)

Seligman, C.G. Races of Africa. 4th ed. O.U.Pr., 1966.