42: Adventure Therapy with Groups
written by Lee H. L. Gillis and Michael A. Gass; edited by Cynthia Kalodner, Maria T. Riva, fl. 2017, Deborah A. Gerrity, fl. 2002 and Janice DeLucia Waack; in Handbook of Group Counseling and Psychotherapy (Thousand Oaks, CA: Sage (Publisher), 2004), 609-622
