Não informado. (1971). South African journal of animal science. South African Society of Animal Production.
Cita Chicago Style (17a ed.)Não informado. South African Journal of Animal Science. Pretoria, Africa do Sul: South African Society of Animal Production, 1971.
Cita MLA (8a ed.)Não informado. South African Journal of Animal Science. South African Society of Animal Production, 1971.
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