APA (7th ed.) Zitazioa
Yalom, I. D. (1970). The theory and practice of group psychotherapy. Basic Books.
Chicago Style (17th ed.) Zitazioa
Yalom, Irvin D. The Theory and Practice of Group Psychotherapy. New York: Basic Books, 1970.
MLA (9th ed.) Zitazioa
Yalom, Irvin D. The Theory and Practice of Group Psychotherapy. Basic Books, 1970.
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