TY - BOOK TI - Advances in isotope hydrology and its role in sustainable water reso urces management ( IHS - 2007) : : proceedings of a symposium Vienna , 21 - 25 May 2007 - Vol. 1 and Vol. 2 PY - 2007/// CY - Vienna : PB - International Atomic Energy Agency, KW - Radioisotopes in hydrology KW - Congresses KW - Hydrology KW - Water-supply N1 - In 2 volumes; Includes bibliographical references ER -