Kirkwood, K. (1951). The proposed federation of the Central African territories: By Kenneth Kirkwood. South African Institute of Race Relations.
Lua i Stíl Chicago (17ú heag.)Kirkwood, Kenneth. The Proposed Federation of the Central African Territories: By Kenneth Kirkwood. Johannesburg: South African Institute of Race Relations, 1951.
Lua MLA (8ú heag.)Kirkwood, Kenneth. The Proposed Federation of the Central African Territories: By Kenneth Kirkwood. South African Institute of Race Relations, 1951.
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