%O Book %T Environmental Isotope Data No. 6: World Survey of Isotope Concentration in Precipitation (1972-1975) %A %U https://www.iaea.org/publications/1293/environmental-isotope-data-no-6-world-survey-of-isotope-concentration-in-precipitation-1972-1975 %D 1979 %I INTERNATIONAL ATOMIC ENERGY AGENCY %C Vienna