APA (7th ed.) Citation

Malthus, T. R. (1968). Principles of political economy: Considered with a view to their practical application. Kelley.

Chicago Style (17th ed.) Citation

Malthus, Thomas Robert. Principles of Political Economy: Considered with a View to Their Practical Application. New York: Kelley, 1968.

MLA (9th ed.) Citation

Malthus, Thomas Robert. Principles of Political Economy: Considered with a View to Their Practical Application. Kelley, 1968.