American Association of Leisure and Recreation & Pelegrino, D. A. (1975). What recreation research says to the recreation practitioner. American Association of Leisure and Recreation of the American Alliance for Health.
Chicago-referens (17:e uppl.)American Association of Leisure and Recreation och Donald A. Pelegrino. What Recreation Research Says to the Recreation Practitioner. Washington: American Association of Leisure and Recreation of the American Alliance for Health, 1975.
MLA-referens (9:e uppl.)American Association of Leisure and Recreation och Donald A. Pelegrino. What Recreation Research Says to the Recreation Practitioner. American Association of Leisure and Recreation of the American Alliance for Health, 1975.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.