Não informado. (1946). English electric and its people. English Electric Company.
Chicagoスタイル(17版)引用形式Não informado. English Electric and Its People. Stanford, Conn: English Electric Company, 1946.
MLA(8版)引用形式Não informado. English Electric and Its People. English Electric Company, 1946.
警告: この引用は必ずしも正確ではありません.