Gailey, H. (1980). History of Africa. Robert E. Krieger Publishing.
Lua i Stíl Chicago (17ú heag.)Gailey, Harry. History of Africa. Florida: Robert E. Krieger Publishing, 1980.
Lua MLA (9ú heag.)Gailey, Harry. History of Africa. Robert E. Krieger Publishing, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.