Cashwell, T. (2015). A Practical guide to play therapy. Cengage Learning.
Citazione stile Chigago Style (17a edizione)Cashwell, Tammy. A Practical Guide to Play Therapy. Australia: Cengage Learning, 2015.
Citatione MLA (9a ed.)Cashwell, Tammy. A Practical Guide to Play Therapy. Cengage Learning, 2015.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.