APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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