APA (7th ed.) Citation

Singer, J. L., Biblow, E., Freyberg, J. T., Gottlieb, S., & Pulaski, M. A. (1973). The child's world of make-believe: Experimental studies of imaginative play. Academic Press.

Chicago Style (17th ed.) Citation

Singer, Jerome L., Ephraim Biblow, Joan T. Freyberg, Sybil Gottlieb, and Mary Ann Pulaski. The Child's World of Make-believe: Experimental Studies of Imaginative Play. New York, NY: Academic Press, 1973.

MLA (9th ed.) Citation

Singer, Jerome L., et al. The Child's World of Make-believe: Experimental Studies of Imaginative Play. Academic Press, 1973.