Não informado. (1968). British Journal of Sports Medicine. British Association of Sports and Medicine.
Chicago-referens (17:e uppl.)Não informado. British Journal of Sports Medicine. Loughborough, Inglaterra: British Association of Sports and Medicine, 1968.
MLA-referens (8:e uppl.)Não informado. British Journal of Sports Medicine. British Association of Sports and Medicine, 1968.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.