Smith, P. (1976). Food Production and its Consequences (2n ed.). California, Cunnings.
शिकागो स्टाइल उद्धरणSmith, Philip. Food Production and Its Consequences. 2n ed. Menlopark: California, Cunnings, 1976.
एमएलए उद्धरणSmith, Philip. Food Production and Its Consequences. 2n ed. California, Cunnings, 1976.
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