Corey, G. (2012). Theory & practice of group counseling (8th ed.). Brooks/Cole, Cengage Learning.
Lua i Stíl Chicago (17ú heag.)Corey, Gerald. Theory & Practice of Group Counseling. 8th ed. Belmont, CA: Brooks/Cole, Cengage Learning, 2012.
Lua MLA (9ú heag.)Corey, Gerald. Theory & Practice of Group Counseling. 8th ed. Brooks/Cole, Cengage Learning, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.