APA (7th ed.) Citation

Glassman, U., & Kates, L. (1990). Group work: A humanistic approach. Sage.

Chicago Style (17th ed.) Citation

Glassman, Urania, and Len Kates. Group Work: A Humanistic Approach. Newbury Park, California: Sage, 1990.

MLA (9th ed.) Citation

Glassman, Urania, and Len Kates. Group Work: A Humanistic Approach. Sage, 1990.