APA

Osae T., Nwabara S., . (1968). A short history of West Africa. London: University of London Press.

Chicago

Osae T.A, Nwabara S.N, . 1968. A short history of West Africa. London: University of London Press.

Harvard

Osae T., Nwabara S., . (1968). A short history of West Africa. London: University of London Press.

MLA

Osae T.A, Nwabara S.N, . A short history of West Africa. London: University of London Press. 1968.