Não informado. (1949). Yearbook of medicine. Year Book Medical Publishers.
Chicago-referens (17:e uppl.)Não informado. Yearbook of Medicine. Chicago, Ill: Year Book Medical Publishers, 1949.
MLA-referens (8:e uppl.)Não informado. Yearbook of Medicine. Year Book Medical Publishers, 1949.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.