APA (7th ed.) Citation

Fassler, J., & Kranz, S. (1971). The boy with a problem. Behavioral Publications.

Chicago Style (17th ed.) Citation

Fassler, Joan, and Stewart Kranz. The Boy with a Problem. New York: Behavioral Publications, 1971.

MLA (9th ed.) Citation

Fassler, Joan, and Stewart Kranz. The Boy with a Problem. Behavioral Publications, 1971.