Shaffer, J. B. P., & Galinsky, M. D. (1974). Models of group therapy and sensitivity training. Prentice-Hall.
Παραπομπή Chicago StyleShaffer, John B. P., και M. David Galinsky. Models of Group Therapy and Sensitivity Training. New Jersey: Prentice-Hall, 1974.
Παραπομπή MLAShaffer, John B. P., και M. David Galinsky. Models of Group Therapy and Sensitivity Training. Prentice-Hall, 1974.
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