Malthus,Thomas, & Gilbert,Geoffrey. (2008). Essay on the principle of population. Oxford University Press.
शिकागो स्टाइल उद्धरणMalthus,Thomas, और Gilbert,Geoffrey. Essay on the Principle of Population. New Delhi: Oxford University Press, 2008.
एमएलए उद्धरणMalthus,Thomas, और Gilbert,Geoffrey. Essay on the Principle of Population. Oxford University Press, 2008.
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