APA-čujuhus (7. p.)

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

Chicago-čujuhus (17. p.)

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

MLA-čujuhus (9. p.)

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

Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.