Não informado. (1983). Outlook. Program for Appropriate Technology in Health.
Chicago (17e ed.) BronvermeldingNão informado. Outlook. Seattle, Wash: Program for Appropriate Technology in Health, 1983.
MLA (8e ed.) BronvermeldingNão informado. Outlook. Program for Appropriate Technology in Health, 1983.
Let op: Deze citaties zijn niet altijd 100% accuraat.