APA (7th ed.) Citation

Malthus, T. R., & Himmelfarb, G. (1960). On population. Modern Library.

Chicago Style (17th ed.) Citation

Malthus, T. R., and Gertrude Himmelfarb. On Population. New York: Modern Library, 1960.

MLA (9th ed.) Citation

Malthus, T. R., and Gertrude Himmelfarb. On Population. Modern Library, 1960.

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