Gross radioactivity in surface waters of the United States, July 1971.
D002859:Chromium Isotopes / Q000032:analysis; D003120:Colorado; D010759:Phosphorus Isotopes / Q000032:analysis; D011834:Radiation Monitoring; D011883:Radium / Q000032:analysis; D014316:Tritium / Q000032:analysis; D014481:United States; D014501:Uranium / Q000032:analysis; D014861:Washington; D014878:Water Pollution, Radioactive; D015033:Zinc Isotopes / Q000032:analysis
D002859:Chromium Isotopes; D010759:Phosphorus Isotopes; D015033:Zinc Isotopes; D014316:Tritium; D014501:Uranium; D011883:Radium