Não informado. (1966). Electrical and Electronics Abstracts. Institution of Electrical Engineers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Electrical and Electronics Abstracts. London: Institution of Electrical Engineers, 1966.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Electrical and Electronics Abstracts. Institution of Electrical Engineers, 1966.
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