Não informado. (2017). Environmental Health Criteria. World Meath Organization.
Chicago (17e ed.) BronvermeldingNão informado. Environmental Health Criteria. Geneve, Suíça: World Meath Organization, 2017.
MLA (8e ed.) BronvermeldingNão informado. Environmental Health Criteria. World Meath Organization, 2017.
Let op: Deze citaties zijn niet altijd 100% accuraat.