Não informado. (1959). NASA Technical Report. National Aeronautics and Space Administration.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. NASA Technical Report. Washington: National Aeronautics and Space Administration, 1959.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. NASA Technical Report. National Aeronautics and Space Administration, 1959.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.