edited by IKIME, O. (1980). GROUND work of Nigerian history. Heinemann Educational Books.
Chicago-referens (17:e uppl.)edited by IKIME, Obaro. GROUND Work of Nigerian History. Heinemann Educational Books, 1980.
MLA-referens (9:e uppl.)edited by IKIME, Obaro. GROUND Work of Nigerian History. Heinemann Educational Books, 1980.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.