Não informado. (1954). Journal of the Radio Research Laboratories. Radio Research Laboratories.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Journal of the Radio Research Laboratories. Tokyo: Radio Research Laboratories, 1954.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Journal of the Radio Research Laboratories. Radio Research Laboratories, 1954.
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