Não informado. (1957). Electronic and radio engineer. Ilife & Sons.
Chicago (17e ed.) BronvermeldingNão informado. Electronic and Radio Engineer. London: Ilife & Sons, 1957.
MLA (8e ed.) BronvermeldingNão informado. Electronic and Radio Engineer. Ilife & Sons, 1957.
Let op: Deze citaties zijn niet altijd 100% accuraat.