Não informado. (1971). South African journal of animal science. South African Society of Animal Production.
Chicago-viite (17. p.)Não informado. South African Journal of Animal Science. Pretoria, Africa do Sul: South African Society of Animal Production, 1971.
MLA-viite (8. p.)Não informado. South African Journal of Animal Science. South African Society of Animal Production, 1971.
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