UNESCO symposium on isotopes in water resources management, volume 2 , 20-24 March 1995, Vienna. - Vienna : International Atomic Energy Agency, 1996. - 530 p. ; 15 cm. - Proceedings series. . In two volumes; Volume 2 Includes bibiographical references. ISBN: 9201007965 ISSN: 00741884 Subjects--Topical Terms: Isotopes. Water supply -- Management.