Feldman, R. A., & Wodarski, J. S. (1975). Contemporary approaches to group treatment: [traditional, behavior-modification, and group-centered methods]. Jossey-Bass Publishers.

Feldman, Ronald A., and John S. Wodarski. Contemporary Approaches to Group Treatment: [traditional, Behavior-modification, and Group-centered Methods]. San Francisco: Jossey-Bass Publishers, 1975.

Feldman, Ronald A., and John S. Wodarski. Contemporary Approaches to Group Treatment: [traditional, Behavior-modification, and Group-centered Methods]. Jossey-Bass Publishers, 1975.