Cita APA (7a ed.)

(1968). The Demography of tropical Africa. P.U. Pr..

Cita Chicago Style (17a ed.)

The Demography of Tropical Africa. Princeton, N.J.: P.U. Pr., 1968.

Cita MLA (9a ed.)

The Demography of Tropical Africa. P.U. Pr., 1968.