Cita APA (7th ed.)
Sutton-Smith, B. (1997). The ambiguity of play. Harvard University Press.
Cita Chicago (17th ed.)
Sutton-Smith, Brian. The Ambiguity of Play. Cambridge, MA: Harvard University Press, 1997.
Cita MLA (9th ed.)
Sutton-Smith, Brian. The Ambiguity of Play. Harvard University Press, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.