Não informado. (1930). Electronics: The international magazine of electronics technology. McGraw-Hill Publications.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Electronics: The International Magazine of Electronics Technology. New York: McGraw-Hill Publications, 1930.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Electronics: The International Magazine of Electronics Technology. McGraw-Hill Publications, 1930.
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