Darwin, C. (1905). The variation of animals and plants under domestication (2nd. ed.). John Murray.
Cita Chicago Style (17a ed.)Darwin, Charles. The Variation of Animals and Plants Under Domestication. 2nd. ed. London: John Murray, 1905.
Cita MLA (8a ed.)Darwin, Charles. The Variation of Animals and Plants Under Domestication. 2nd. ed. John Murray, 1905.
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