APA-Zitierstil (7. Ausg.)

Corey, G. (1990). Theory and practice of group counseling (3. ed.). Brooks/Cole.

Chicago-Zitierstil (17. Ausg.)

Corey, Gerald. Theory and Practice of Group Counseling. 3. ed. Pacific Grove, Calif. [u.a.]: Brooks/Cole, 1990.

MLA-Zitierstil (9. Ausg.)

Corey, Gerald. Theory and Practice of Group Counseling. 3. ed. Brooks/Cole, 1990.