Whitaker, D. S., & Lieberman, M. A. (2008). Psychotherapeutic change through the group process (1st pbk. printing.). New Brunswick, N.J.: AldineTransaction.
Παραπομπή Chicago StyleWhitaker, Dorothy Stock, και Morton A. Lieberman. Psychotherapeutic Change Through the Group Process. 1st pbk. printing. New Brunswick, N.J.: AldineTransaction, 2008.
Παραπομπή MLAWhitaker, Dorothy Stock, και Morton A. Lieberman. Psychotherapeutic Change Through the Group Process. 1st pbk. printing. New Brunswick, N.J.: AldineTransaction, 2008.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.