O'Connor, K. J. (1991). The play therapy primer: An integration of theories and techniques. Wiley.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रO'Connor, Kevin J. The Play Therapy Primer: An Integration of Theories and Techniques. New York: Wiley, 1991.
एमएलए (8वां संस्करण) प्रशस्ति पत्रO'Connor, Kevin J. The Play Therapy Primer: An Integration of Theories and Techniques. Wiley, 1991.
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