APA (7th ed.) Citation

Popenoe, P. B. (1940). Modern marriage (2nd ed.). Macmillan.

Chicago Style (17th ed.) Citation

Popenoe, Paul Bowman. Modern Marriage. 2nd ed. New York: Macmillan, 1940.

MLA (9th ed.) Citation

Popenoe, Paul Bowman. Modern Marriage. 2nd ed. Macmillan, 1940.