Williamson G. (1959). An introduction to animal husbandry in the tropics (3rd ed.). Longman.
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Chicago-čujuhus (17. p.)
Williamson G. An Introduction to Animal Husbandry in the Tropics. 3rd ed. London: Longman, 1959.
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MLA-čujuhus (9. p.)
Williamson G. An Introduction to Animal Husbandry in the Tropics. 3rd ed. Longman, 1959.
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