Cita APA (7th ed.)
Corey, G. (1990). Theory and practice of group counseling (3rd ed.). Brooks.
Cita Chicago (17th ed.)
Corey, Gerald. Theory and Practice of Group Counseling. 3rd ed. Pacific Grove: Brooks, 1990.
Cita MLA (9th ed.)
Corey, Gerald. Theory and Practice of Group Counseling. 3rd ed. Brooks, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.