Okolo, C. B. (1979). In Retrospect and Prospect : The Modern African Revisited.
Cita Chicago (17th ed.)Okolo, Chukwudum Barnabas. In Retrospect and Prospect : The Modern African Revisited. 1979.
Cita MLA (8th ed.)Okolo, Chukwudum Barnabas. In Retrospect and Prospect : The Modern African Revisited. 1979.
Atenció: Aquestes cites poden no estar 100% correctes.