Não informado. (1949). Journal of the American Association for Health, Physical Education and Recreation. American Association for Health, Physical Education and Recreation.
Chicago-referens (17:e uppl.)Não informado. Journal of the American Association for Health, Physical Education and Recreation. Washington: American Association for Health, Physical Education and Recreation, 1949.
MLA-referens (8:e uppl.)Não informado. Journal of the American Association for Health, Physical Education and Recreation. American Association for Health, Physical Education and Recreation, 1949.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.