Okoth, A. (1979). A History of Africa 1855-1914 (New enlarged edition.). East African Educational Publishers.
Chicago Style (17th ed.) ZitazioaOkoth, Assa. A History of Africa 1855-1914. New enlarged edition. Nairobi: East African Educational Publishers, 1979.
MLA (9th ed.) ZitazioaOkoth, Assa. A History of Africa 1855-1914. New enlarged edition. East African Educational Publishers, 1979.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.