U.S. National Oceanographic Data Center: Global Temperature–Salinity Profile Programme. June 2006. U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Oceanographic Data Center, Silver Spring, Maryland, 20910. Date of Access, http://www.nodc.noaa.gov/GTSPP/ 25 Mayıs 2020 tarihinde Wayback Machine sitesinde arşivlendi.
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U.S. National Oceanographic Data Center: Global Temperature–Salinity Profile Programme. June 2006. U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Oceanographic Data Center, Silver Spring, Maryland, 20910. Date of Access, http://www.nodc.noaa.gov/GTSPP/ 25 Mayıs 2020 tarihinde Wayback Machine sitesinde arşivlendi.
