Singer, D. G., & Singer, J. L. (1990). The house of make-believe: Children's play and the developing imagination. Harvard University Press.
Chicago-Zitierstil (17. Ausg.)Singer, Dorothy G., und Jerome L. Singer. The House of Make-believe: Children's Play and the Developing Imagination. Cambridge, Mass.: Harvard University Press, 1990.
MLA-Zitierstil (8. Ausg.)Singer, Dorothy G., und Jerome L. Singer. The House of Make-believe: Children's Play and the Developing Imagination. Harvard University Press, 1990.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.