Não informado. (1976). FAA general aviation news. Federal Aviation administration.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. FAA General Aviation News. Washington: Federal Aviation administration, 1976.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. FAA General Aviation News. Federal Aviation administration, 1976.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.