Shaffer, J. B. P., & Galinsky, M. D. (1989). Models of group therapy (2nd. ed.). Prentice Hall.
Chicago Edition CitationShaffer, John B. P., and M. David Galinsky. Models of Group Therapy. 2nd. ed. New Jersy: Prentice Hall, 1989.
Deismireacht MLAShaffer, John B. P., and M. David Galinsky. Models of Group Therapy. 2nd. ed. Prentice Hall, 1989.
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