Egan, G. (1970). Encounter; group processes for interpersonal growth. Brooks/Cole Pub. Co..
Chicago Style (17. basım) AtıfEgan, Gerard. Encounter; Group Processes for Interpersonal Growth. Belmont, Calif.: Brooks/Cole Pub. Co., 1970.
MLA (8th ed.) AtıfEgan, Gerard. Encounter; Group Processes for Interpersonal Growth. Brooks/Cole Pub. Co., 1970.
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