Lewin, J. (1950). Britain's colour bar in Africa. Union of Democratic Control.
Lua i Stíl Chicago (17ú heag.)Lewin, Julius. Britain's Colour Bar in Africa. London: Union of Democratic Control, 1950.
Lua MLA (8ú heag.)Lewin, Julius. Britain's Colour Bar in Africa. Union of Democratic Control, 1950.
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