APA-viite (7. p.)
Corey, G. (2009). Theory and practice of counseling and psychotherapy (8th ed.). Brooks/Cole.
Chicago-viite (17. p.)
Corey, Gerald. Theory and Practice of Counseling and Psychotherapy. 8th ed. Australia: Brooks/Cole, 2009.
MLA-viite (9. p.)
Corey, Gerald. Theory and Practice of Counseling and Psychotherapy. 8th ed. Brooks/Cole, 2009.
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