Não informado. (1962). European Chemical News. Reed Business Publishing.
Chicago (17e ed.) BronvermeldingNão informado. European Chemical News. Surrey, Inglaterra: Reed Business Publishing, 1962.
MLA (8e ed.) BronvermeldingNão informado. European Chemical News. Reed Business Publishing, 1962.
Let op: Deze citaties zijn niet altijd 100% accuraat.