Não informado. (1970). Gas Chromatography. PRM Science and Technology Agency.
Chicago (17e ed.) BronvermeldingNão informado. Gas Chromatography. London: PRM Science and Technology Agency, 1970.
MLA (8e ed.) BronvermeldingNão informado. Gas Chromatography. PRM Science and Technology Agency, 1970.
Let op: Deze citaties zijn niet altijd 100% accuraat.