Dyfyniad APA
Yalom, I. D. (1970). The theory and practice of group psychotherapy. Basic Books.
Dyfyniad Arddull Chicago
Yalom, Irvin D. The Theory and Practice of Group Psychotherapy. New York: Basic Books, 1970.
Dyfyniad MLA
Yalom, Irvin D. The Theory and Practice of Group Psychotherapy. Basic Books, 1970.
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