Não informado. (1911). Agricultural journal of the Union of South Africa. Department of Agriculture.
Chicagoスタイル(17版)引用形式Não informado. Agricultural Journal of the Union of South Africa. Pretoria, Africa do Sul: Department of Agriculture, 1911.
MLA(8版)引用形式Não informado. Agricultural Journal of the Union of South Africa. Department of Agriculture, 1911.
警告: この引用は必ずしも正確ではありません.