Não informado. (1939). Annals of the Rheumatic Diseases. British Medical Association.
Chicago-Zitierstil (17. Ausg.)Não informado. Annals of the Rheumatic Diseases. London: British Medical Association, 1939.
MLA-Zitierstil (8. Ausg.)Não informado. Annals of the Rheumatic Diseases. British Medical Association, 1939.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.