Ehrlich, P. R. (2000). Human natures: Genes, cultures, and the human prospect. Washington: Island Press.
शिकागो स्टाइल उद्धरणEhrlich, Paul R. Human Natures: Genes, Cultures, and the Human Prospect. Washington: Island Press, 2000.
एमएलए उद्धरणEhrlich, Paul R. Human Natures: Genes, Cultures, and the Human Prospect. Washington: Island Press, 2000.
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