Darwin, C. (1988). Variation of animals and plants under domestication. Pickering and Chatto.
Cita Chicago Style (17a ed.)Darwin, Charles. Variation of Animals and Plants Under Domestication. London: Pickering and Chatto, 1988.
Cita MLA (9a ed.)Darwin, Charles. Variation of Animals and Plants Under Domestication. Pickering and Chatto, 1988.
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