Não informado. (1953). British Journal of Preventive and Social Medicine. British Medical Association.
Chicago-referens (17:e uppl.)Não informado. British Journal of Preventive and Social Medicine. London: British Medical Association, 1953.
MLA-referens (8:e uppl.)Não informado. British Journal of Preventive and Social Medicine. British Medical Association, 1953.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.