Não informado. (1940). Diseases of the Nervous System. Physicians Postgraduate Press.
Chicago (17e ed.) BronvermeldingNão informado. Diseases of the Nervous System. New York: Physicians Postgraduate Press, 1940.
MLA (8e ed.) BronvermeldingNão informado. Diseases of the Nervous System. Physicians Postgraduate Press, 1940.
Let op: Deze citaties zijn niet altijd 100% accuraat.