Não informado. (1962). GEC Journal of Science and Technology. General Electric Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. GEC Journal of Science and Technology. London: General Electric Company, 1962.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. GEC Journal of Science and Technology. General Electric Company, 1962.
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