Corey, G. (2009). Case approach to counseling and psychotherapy (7th ed.). Thomson-Brooks/Cole.
Chicago-referens (17:e uppl.)Corey, Gerald. Case Approach to Counseling and Psychotherapy. 7th ed. Australia ; [Belmont, CA] United States: Thomson-Brooks/Cole, 2009.
MLA-referens (9:e uppl.)Corey, Gerald. Case Approach to Counseling and Psychotherapy. 7th ed. Thomson-Brooks/Cole, 2009.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.