APA (7th ed.) Zitazioa

Corey, G. (2012). Theory & practice of group counseling (8th ed.). Brooks/Cole, Cengage Learning.

Chicago Style (17th ed.) Zitazioa

Corey, Gerald. Theory & Practice of Group Counseling. 8th ed. Belmont, CA: Brooks/Cole, Cengage Learning, 2012.

MLA (9th ed.) Zitazioa

Corey, Gerald. Theory & Practice of Group Counseling. 8th ed. Brooks/Cole, Cengage Learning, 2012.