APA-referens (7:e uppl.)

Reddy, L. A., Files-Hall, T. M., & Schaefer, C. E. (2005). Empirically based play interventions for children. Washington, DC : American Psychological Association.

Chicago-referens (17:e uppl.)

Reddy, Linda A., Tara M. Files-Hall, och Charles E. Schaefer. Empirically Based Play Interventions for Children. Washington, DC : American Psychological Association, 2005.

MLA-referens (9:e uppl.)

Reddy, Linda A., et al. Empirically Based Play Interventions for Children. Washington, DC : American Psychological Association, 2005.