Não informado. (1965). Vital and health statistics. National Center for Health Statistics.
Chicago (17e ed.) BronvermeldingNão informado. Vital and Health Statistics. Washington: National Center for Health Statistics, 1965.
MLA (8e ed.) BronvermeldingNão informado. Vital and Health Statistics. National Center for Health Statistics, 1965.
Let op: Deze citaties zijn niet altijd 100% accuraat.