Não informado. (1926). Farming in South Africa. Union of South Africa, Department of Agriculture.
Style de citation Chicago (17e éd.)Não informado. Farming in South Africa. Pretoria, Africa do Sul: Union of South Africa, Department of Agriculture, 1926.
Style de citation MLA (8e éd.)Não informado. Farming in South Africa. Union of South Africa, Department of Agriculture, 1926.
Attention : ces citations peuvent ne pas être correctes à 100%.