APA (7th ed.) Citation

O'Connor, K. J. (1991). The play therapy primer: An integration of theories and techniques. Wiley.

Chicago Style (17th ed.) Citation

O'Connor, Kevin J. The Play Therapy Primer: An Integration of Theories and Techniques. New York: Wiley, 1991.

MLA (8th ed.) Citation

O'Connor, Kevin J. The Play Therapy Primer: An Integration of Theories and Techniques. Wiley, 1991.