Oliver, R. (1994). Africa since 1800. Cambridge.
Lua i Stíl Chicago (17ú heag.)Oliver, Ronald. Africa Since 1800. New York: Cambridge, 1994.
Lua MLA (9ú heag.)Oliver, Ronald. Africa Since 1800. Cambridge, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.