APA Edition Citation

Malthus, T. R. (1989). An essay on the principle of population. Cambridge University Press.

Chicago Edition Citation

Malthus, T. R. An Essay on the Principle of Population. Cambridge: Cambridge University Press, 1989.

MLA Edition Citation

Malthus, T. R. An Essay on the Principle of Population. Cambridge University Press, 1989.

Warning: These citations may not always be 100% accurate.