Não informado. (1946). English electric and its people. English Electric Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. English Electric and Its People. Stanford, Conn: English Electric Company, 1946.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. English Electric and Its People. English Electric Company, 1946.
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