O'Connor, K. J., & Ammen, S. (1997). Play therapy treatment planning and interventions: The ecosystemic model and workbook. San Diego ; London: Academic.
Chicago Style CitationO'Connor, Kevin J., and Sue Ammen. Play Therapy Treatment Planning and Interventions: The Ecosystemic Model and Workbook. San Diego ; London: Academic, 1997.
MLA CitationO'Connor, Kevin J., and Sue Ammen. Play Therapy Treatment Planning and Interventions: The Ecosystemic Model and Workbook. San Diego ; London: Academic, 1997.
Warning: These citations may not always be 100% accurate.