Não informado. (1945). British Abstracts. Bureau of Chemical Abstracts.
Chicago (17e ed.) BronvermeldingNão informado. British Abstracts. London: Bureau of Chemical Abstracts, 1945.
MLA (8e ed.) BronvermeldingNão informado. British Abstracts. Bureau of Chemical Abstracts, 1945.
Let op: Deze citaties zijn niet altijd 100% accuraat.