Não informado. (1963). Radio and electronic engineer. Institution of Electronic and Radio Engineers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Radio and Electronic Engineer. London: Institution of Electronic and Radio Engineers, 1963.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Radio and Electronic Engineer. Institution of Electronic and Radio Engineers, 1963.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.