Dyfyniad APA
Grieshaber, S. J., & McArdle, F. (2010). The trouble with play. Open University Press.
Dyfyniad Arddull Chicago
Grieshaber, Susan Jane, and Felicity McArdle. The Trouble with Play. Berkshire, England: Open University Press, 2010.
Dyfyniad MLA
Grieshaber, Susan Jane, and Felicity McArdle. The Trouble with Play. Open University Press, 2010.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.