Citazione Stile APA (7a Edizione)
Schaefer, C. E., & Drewes, A. A. (2014). The therapeutic powers of play: 20 core agents of change (Second edition.). John Wiley & Sons, Inc..
Citazione stile Chigago Style (17a edizione)
Schaefer, Charles E., e Athena A. Drewes. The Therapeutic Powers of Play: 20 Core Agents of Change. Second edition. Hoboken, New Jersey: John Wiley & Sons, Inc., 2014.
Citatione MLA (9a ed.)
Schaefer, Charles E., e Athena A. Drewes. The Therapeutic Powers of Play: 20 Core Agents of Change. Second edition. John Wiley & Sons, Inc., 2014.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.