APA (7th ed.) Citation

Kirsch, F. M. (1935). The sex problem: A challenge and an opportunity. Paulist Press.

Chicago Style (17th ed.) Citation

Kirsch, Felix M. The Sex Problem: A Challenge and an Opportunity. New York, N.Y.: Paulist Press, 1935.

MLA (8th ed.) Citation

Kirsch, Felix M. The Sex Problem: A Challenge and an Opportunity. Paulist Press, 1935.