Não informado. (1980). Research Quarterly for Exercise and Sport. American Alliance for Health, Physical Education, Recreation and Dance.
Chicago-referens (17:e uppl.)Não informado. Research Quarterly for Exercise and Sport. Washington: American Alliance for Health, Physical Education, Recreation and Dance, 1980.
MLA-referens (8:e uppl.)Não informado. Research Quarterly for Exercise and Sport. American Alliance for Health, Physical Education, Recreation and Dance, 1980.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.