Não informado. (1933). Onderstepoort Journal of Veterinary Science and Animal Industry. Department of Agriculture.
Chicago-referens (17:e uppl.)Não informado. Onderstepoort Journal of Veterinary Science and Animal Industry. Pretoria, Africa do Sul: Department of Agriculture, 1933.
MLA-referens (8:e uppl.)Não informado. Onderstepoort Journal of Veterinary Science and Animal Industry. Department of Agriculture, 1933.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.