GassM.A. (1993). The future of the profession of adventure therapy. In GassM. A. (Ed.), Adventure therapy: Therapeutic applications of adventure programming (pp. 411–416). Dubuque, IA: Kendall/Hunt.
2.
SchoelJ., ProutyD., & RadcliffeP. (1988) Islands of healing: A guide to adventure-based counseling.Hamilton, MA: Project Adventure.