Keogh Hoss, PhD, CTRS, M. A., and M. Armstrong, MS, CTRS/R, FDRT. “Management Functions in Recreational Therapy by David R. Austin, Bryan P. McCormick, and Marieke Van Puymbroeck”. American Journal of Recreation Therapy, vol. 16, no. 2, Apr. 2017, pp. 51-52, doi:10.5055/ajrt.2017.0133.