G Williamson. (1959). An introduction to animal husbandry in the tropics. London: Longman.
Trích dẫn kiểu ChicagoG Williamson. An Introduction to Animal Husbandry in the Tropics. London: Longman, 1959.
Deismireacht MLAG Williamson. An Introduction to Animal Husbandry in the Tropics. London: Longman, 1959.
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