Dyfyniad APA

Malthus,T R. (1834). An Essay on the principle of population. Dent.

Dyfyniad Arddull Chicago

Malthus,T R. An Essay on the Principle of Population. London: Dent, 1834.

Dyfyniad MLA

Malthus,T R. An Essay on the Principle of Population. Dent, 1834.

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