Não informado. (1997). Abstracts in new technologies and engineering. Bowker-Saur.
Chicago (17e ed.) BronvermeldingNão informado. Abstracts in New Technologies and Engineering. Sussex, Inglaterra: Bowker-Saur, 1997.
MLA (8e ed.) BronvermeldingNão informado. Abstracts in New Technologies and Engineering. Bowker-Saur, 1997.
Let op: Deze citaties zijn niet altijd 100% accuraat.