APA (7th ed.) Citation

Cohen, D. (1993). The development of play (2nd ed.). Routledge.

Chicago Style (17th ed.) Citation

Cohen, David. The Development of Play. 2nd ed. London ; New York: Routledge, 1993.

MLA (9th ed.) Citation

Cohen, David. The Development of Play. 2nd ed. Routledge, 1993.