Dyfyniad APA
Sutton-Smith, B. (1997). The ambiguity of play. Harvard University Press.
Dyfyniad Arddull Chicago
Sutton-Smith, Brian. The Ambiguity of Play. Cambridge, MA: Harvard University Press, 1997.
Dyfyniad MLA
Sutton-Smith, Brian. The Ambiguity of Play. Harvard University Press, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.