Não informado. (1927). Quarterly Cumulative Index Medicus. American Medical Association.
Chicago (17e ed.) BronvermeldingNão informado. Quarterly Cumulative Index Medicus. Chicago, Ill: American Medical Association, 1927.
MLA (8e ed.) BronvermeldingNão informado. Quarterly Cumulative Index Medicus. American Medical Association, 1927.
Let op: Deze citaties zijn niet altijd 100% accuraat.