MALTHUS, T. R. (1798). An Essay on the principle of population and a summary view of the principle of population. penguin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMALTHUS, Thomas Robert. An Essay on the Principle of Population and a Summary View of the Principle of Population. England: penguin, 1798.
एमएलए (9वां संस्करण) प्रशस्ति पत्रMALTHUS, Thomas Robert. An Essay on the Principle of Population and a Summary View of the Principle of Population. penguin, 1798.
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