Não informado. (1939). Annals of the Rheumatic Diseases. British Medical Association.
Chicago-referens (17:e uppl.)Não informado. Annals of the Rheumatic Diseases. London: British Medical Association, 1939.
MLA-referens (8:e uppl.)Não informado. Annals of the Rheumatic Diseases. British Medical Association, 1939.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.