Corey, G. (2009). Theory and practice of counseling and psychotherapy (8th ed.). Brooks/Cole.
Lua i Stíl Chicago (17ú heag.)Corey, Gerald. Theory and Practice of Counseling and Psychotherapy. 8th ed. Australia: Brooks/Cole, 2009.
Lua MLA (9ú heag.)Corey, Gerald. Theory and Practice of Counseling and Psychotherapy. 8th ed. Brooks/Cole, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.