APA-viite (7. p.)
Corey, G. (2009). Case approach to counseling and psychotherapy (7th ed.). Thomson-Brooks/Cole.
Chicago-viite (17. p.)
Corey, Gerald. Case Approach to Counseling and Psychotherapy. 7th ed. Australia ; [Belmont, CA] United States: Thomson-Brooks/Cole, 2009.
MLA-viite (9. p.)
Corey, Gerald. Case Approach to Counseling and Psychotherapy. 7th ed. Thomson-Brooks/Cole, 2009.
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