Citazione Stile APA (7a Edizione)

Onwubiko, K. B. C. (1982). History of West Africa: School certificate (2. ed., rev., enl. and reset.). Africana Publ. Ltd.

Citazione stile Chigago Style (17a edizione)

Onwubiko, K. B. C. History of West Africa: School Certificate. 2. ed., rev., enl. and reset. Onitsha: Africana Publ. Ltd, 1982.

Citatione MLA (9a ed.)

Onwubiko, K. B. C. History of West Africa: School Certificate. 2. ed., rev., enl. and reset. Africana Publ. Ltd, 1982.