National Recreation and Park Association. Resource Development Division, Mobley, T. A., & Toalson, R. F. (1992). Parks and recreation in the 21st century: Chapter I : conference report. National Recreation and Park Association, Resource Development Division.
Cita Chicago Style (17a ed.)National Recreation and Park Association. Resource Development Division, Tony A. Mobley, y Robert F. Toalson. Parks and Recreation in the 21st Century: Chapter I : Conference Report. Arlington, Virginia: National Recreation and Park Association, Resource Development Division, 1992.
Cita MLA (9a ed.)National Recreation and Park Association. Resource Development Division, et al. Parks and Recreation in the 21st Century: Chapter I : Conference Report. National Recreation and Park Association, Resource Development Division, 1992.
