APA (7th ed.) Citation

Wolberg, L. R. (19). Group therapy: An overview. Stratton intercontinental.

Chicago Style (17th ed.) Citation

Wolberg, Lewis R. Group Therapy: An Overview. New York: Stratton intercontinental, 19.

MLA (9th ed.) Citation

Wolberg, Lewis R. Group Therapy: An Overview. Stratton intercontinental, 19.