Citazione Stile APA (7a Edizione)

Malthus, T. R. (1960). An essay on the principle of population. J. M. Dent & Sons.

Citazione stile Chigago Style (17a edizione)

Malthus, T. R. An Essay on the Principle of Population. London: J. M. Dent & Sons, 1960.

Citatione MLA (9a ed.)

Malthus, T. R. An Essay on the Principle of Population. J. M. Dent & Sons, 1960.