Cita APA (7a ed.)

Opini, B., & Lee, R. B. (2011). Africans thought of it: Amazing innovations. Annick Press.

Cita Chicago Style (17a ed.)

Opini, Bathseba, y Richard B. Lee. Africans Thought of It: Amazing Innovations. Toronto: Annick Press, 2011.

Cita MLA (8a ed.)

Opini, Bathseba, y Richard B. Lee. Africans Thought of It: Amazing Innovations. Annick Press, 2011.

Precaución: Estas citas no son 100% exactas.