Não informado. (1926). Farming in South Africa. Union of South Africa, Department of Agriculture.
Citace podle Chicago (17th ed.)Não informado. Farming in South Africa. Pretoria, Africa do Sul: Union of South Africa, Department of Agriculture, 1926.
Citace podle MLA (8th ed.)Não informado. Farming in South Africa. Union of South Africa, Department of Agriculture, 1926.
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