Não informado. (1954). Communications and electronics. Heywood.
Chicagoスタイル(17版)引用形式Não informado. Communications and Electronics. London: Heywood, 1954.
MLA(8版)引用形式Não informado. Communications and Electronics. Heywood, 1954.
警告: この引用は必ずしも正確ではありません.