Smith, P. K. (2009). Children and play. Wiley-Blackwell.
Lua i Stíl Chicago (17ú heag.)Smith, Peter K. Children and Play. Malden, MA: Wiley-Blackwell, 2009.
Lua MLA (9ú heag.)Smith, Peter K. Children and Play. Wiley-Blackwell, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.