00536nam a22001337a 4500008004100000040005500041080003400096245015400130260005700284300001100341650001300352653001300365653002400378230504b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  a551.49:621.039.8(082.2)bL4.1  aIsotope techniques in groundwater hydrology 1974 c/ International Atomic Energy Agency, Proceedings of a symposium, Vienna, 11-15 March 1974, Vol. I  aVienna: bInternational Atomic Energy Agency, c1974  a501p.   aScience   aGeology   aIsotope techniques