Não informado. (1972). Environmental Health Perspectives. National Institute of Environmenatl Health Sciences.
Chicago (17e ed.) BronvermeldingNão informado. Environmental Health Perspectives. Research Triangle Park, NC: National Institute of Environmenatl Health Sciences, 1972.
MLA (8e ed.) BronvermeldingNão informado. Environmental Health Perspectives. National Institute of Environmenatl Health Sciences, 1972.
Let op: Deze citaties zijn niet altijd 100% accuraat.