Citazione Stile APA (7a Edizione)

Malthus, T. R. (1951). Principles of political economy considered with a view to their practical application (2nd ed.). A.M. Kelley.

Citazione stile Chigago Style (17a edizione)

Malthus, Thomas Robert. Principles of Political Economy Considered with a View to Their Practical Application. 2nd ed. New York: A.M. Kelley, 1951.

Citatione MLA (9a ed.)

Malthus, Thomas Robert. Principles of Political Economy Considered with a View to Their Practical Application. 2nd ed. A.M. Kelley, 1951.