Cita APA (7th ed.)
Smith, P. K. (2009). Children and play. Wiley-Blackwell.
Cita Chicago (17th ed.)
Smith, Peter K. Children and Play. Malden, MA: Wiley-Blackwell, 2009.
Cita MLA (9th ed.)
Smith, Peter K. Children and Play. Wiley-Blackwell, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.