Cita APA (7th ed.)

Segun, M. D., & Layiwola, D. (1987). Institute of African Studies (25th ed.). University of Ibadan.

Cita Chicago (17th ed.)

Segun, Mabel D., i Dele Layiwola. Institute of African Studies. 25th ed. [Ibadan, Nigeria: University of Ibadan, 1987.

Cita MLA (9th ed.)

Segun, Mabel D., i Dele Layiwola. Institute of African Studies. 25th ed. University of Ibadan, 1987.