Cita APA (7th ed.)

Richards, P. (1985). Indigenous agricultural revolutions: Ecology and food production in West Africa. Hutchinson.

Cita Chicago (17th ed.)

Richards, Paul. Indigenous Agricultural Revolutions: Ecology and Food Production in West Africa. London: Hutchinson, 1985.

Cita MLA (9th ed.)

Richards, Paul. Indigenous Agricultural Revolutions: Ecology and Food Production in West Africa. Hutchinson, 1985.