Não informado. (1990). Archives of Public Health. Archives Belges de Medecine Sociale.
Chicago (17e ed.) BronvermeldingNão informado. Archives of Public Health. Brussels: Archives Belges de Medecine Sociale, 1990.
MLA (8e ed.) BronvermeldingNão informado. Archives of Public Health. Archives Belges de Medecine Sociale, 1990.
Let op: Deze citaties zijn niet altijd 100% accuraat.