Não informado. (1911). Agricultural journal of the Union of South Africa. Department of Agriculture.
Chicago-Zitierstil (17. Ausg.)Não informado. Agricultural Journal of the Union of South Africa. Pretoria, Africa do Sul: Department of Agriculture, 1911.
MLA-Zitierstil (8. Ausg.)Não informado. Agricultural Journal of the Union of South Africa. Department of Agriculture, 1911.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.