Não informado. (1911). Report of the Director of Veterinary Services and Animal Industry, Onderstepoort. Department of Agriculture.
Chicago-referens (17:e uppl.)Não informado. Report of the Director of Veterinary Services and Animal Industry, Onderstepoort. Pretoria, Africa do Sul: Department of Agriculture, 1911.
MLA-referens (8:e uppl.)Não informado. Report of the Director of Veterinary Services and Animal Industry, Onderstepoort. Department of Agriculture, 1911.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.