%O Book %T Environmental Isotope Data No. 4: World Survey of Isotope Concentration in Precipitation (1968鈥?969) %A %U http://www.dgdingfa.net/publications/1248/environmental-isotope-data-no-4-world-survey-of-isotope-concentration-in-precipitation-1968-1969 %D 1973 %I INTERNATIONAL ATOMIC ENERGY AGENCY %C Vienna
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