Singer, J. L., Biblow, E., Gottlieb, S., Freyberg, J. T., & Pulaski, M. A. (1973). The Child's world of make-believe: Experimental studies of imaginative play. Acad.Pr.
Chicago Style (17th ed.) CitationSinger, Jerome L., Ephraim Biblow, Sybil Gottlieb, Joan T. Freyberg, and Mary A. Pulaski. The Child's World of Make-believe: Experimental Studies of Imaginative Play. New York [u.a.]: Acad.Pr, 1973.
MLA (8th ed.) CitationSinger, Jerome L., et al. The Child's World of Make-believe: Experimental Studies of Imaginative Play. Acad.Pr, 1973.
Warning: These citations may not always be 100% accurate.