Não informado. (1983). American Journal of Perinatology. Thieme Medical Publishers.
Chicago (17e ed.) BronvermeldingNão informado. American Journal of Perinatology. New York: Thieme Medical Publishers, 1983.
MLA (8e ed.) BronvermeldingNão informado. American Journal of Perinatology. Thieme Medical Publishers, 1983.
Let op: Deze citaties zijn niet altijd 100% accuraat.