Cita APA (7th ed.)

Corey, G. (1985). Theory and practice of group counselling (2nd ed.). Brooks/Cole Publishing.

Cita Chicago (17th ed.)

Corey, Gerald. Theory and Practice of Group Counselling. 2nd ed. California.: Brooks/Cole Publishing, 1985.

Cita MLA (9th ed.)

Corey, Gerald. Theory and Practice of Group Counselling. 2nd ed. Brooks/Cole Publishing, 1985.