General Electric Company (Great Britain). (2019). GEC Engineering. General Electric Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGeneral Electric Company (Great Britain). GEC Engineering. London: General Electric Company, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGeneral Electric Company (Great Britain). GEC Engineering. General Electric Company, 2019.
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