Roller, B. (1997). The promise of group therapy: How to build a vigorous training and organizational base for group therapy in managed behavioral healthcare. Jossey-Bass Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRoller, Bill. The Promise of Group Therapy: How to Build a Vigorous Training and Organizational Base for Group Therapy in Managed Behavioral Healthcare. San Francisco, Calif.: Jossey-Bass Publishers, 1997.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRoller, Bill. The Promise of Group Therapy: How to Build a Vigorous Training and Organizational Base for Group Therapy in Managed Behavioral Healthcare. Jossey-Bass Publishers, 1997.
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