Não informado. (1972). Electronics and communications abstracts journal. Cambridge Scientific Abstracts.
Chicago (17e ed.) BronvermeldingNão informado. Electronics and Communications Abstracts Journal. Bethesda, Md: Cambridge Scientific Abstracts, 1972.
MLA (8e ed.) BronvermeldingNão informado. Electronics and Communications Abstracts Journal. Cambridge Scientific Abstracts, 1972.
Let op: Deze citaties zijn niet altijd 100% accuraat.