Não informado. (1940). Diseases of the Nervous System. Physicians Postgraduate Press.
Chicago-referens (17:e uppl.)Não informado. Diseases of the Nervous System. New York: Physicians Postgraduate Press, 1940.
MLA-referens (8:e uppl.)Não informado. Diseases of the Nervous System. Physicians Postgraduate Press, 1940.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.