Tohutoro APA (7th ed.)
Corey, G. (1991). Group techniques (2nd ed.). Brooks/Cole.
Tohutoru Kātū Chicago (17th ed.)
Corey, Gerald. Group Techniques. 2nd ed. California: Brooks/Cole, 1991.
Tohutoro MLA (9th ed.)
Corey, Gerald. Group Techniques. 2nd ed. Brooks/Cole, 1991.
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