APA Style

Corey, Gerald. (2012). Theory & Practice of Group Counseling (Ed. 8). USA: Penerbit Brooks/Cole, Cengage Learning.

Chicago Style

Corey, Gerald. Theory & Practice of Group Counseling. Ed. 8 USA: Penerbit Brooks/Cole, Cengage Learning, 2012. Text.

MLA Style

Corey, Gerald. Theory & Practice of Group Counseling. Ed. 8 USA: Penerbit Brooks/Cole, Cengage Learning, 2012. Text.

Turabian Style

Corey, Gerald. Theory & Practice of Group Counseling. Ed. 8 USA: Penerbit Brooks/Cole, Cengage Learning, 2012. Print.