Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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