Não informado. (1986). Science, technology & development. Frank Cass.
Chicago (17e ed.) BronvermeldingNão informado. Science, Technology & Development. London: Frank Cass, 1986.
MLA (8e ed.) BronvermeldingNão informado. Science, Technology & Development. Frank Cass, 1986.
Let op: Deze citaties zijn niet altijd 100% accuraat.