Não informado. (1933). Onderstepoort Journal of Veterinary Science and Animal Industry. Department of Agriculture.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Onderstepoort Journal of Veterinary Science and Animal Industry. Pretoria, Africa do Sul: Department of Agriculture, 1933.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Onderstepoort Journal of Veterinary Science and Animal Industry. Department of Agriculture, 1933.
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