Não informado. (1971). NOAA. U.S. Department of Commerce, National Oceanic and Atmospheric Administration, Office of Public Affairs.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. NOAA. Rockville, Md: U.S. Department of Commerce, National Oceanic and Atmospheric Administration, Office of Public Affairs, 1971.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. NOAA. U.S. Department of Commerce, National Oceanic and Atmospheric Administration, Office of Public Affairs, 1971.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.