APA način citiranja (7. izdanje)

edited by IKIME, O. (1980). GROUND work of Nigerian history. Heinemann Educational Books.

Čikaški stil citiranja (17. izdanje)

edited by IKIME, Obaro. GROUND Work of Nigerian History. Heinemann Educational Books, 1980.

MLA način citiranja (9. izdanje)

edited by IKIME, Obaro. GROUND Work of Nigerian History. Heinemann Educational Books, 1980.