Niven, S. C. R. (1964). Nine great Africans. G. Bell.
Lua i Stíl Chicago (17ú heag.)Niven, Sir Cecil Rex. Nine Great Africans. London: G. Bell, 1964.
Lua MLA (9ú heag.)Niven, Sir Cecil Rex. Nine Great Africans. G. Bell, 1964.
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