Groundwater and human development / editors Emilia Bocanegra ; Mario Hernandez & Eduardo Usunoff. - London : A.A.Balkema Publishers, c2005. - Selected papers on hydrogeology ; 6 . Includes references. ISBN: 9780415364430 (hbk.) vol.6 LCCN: 74164998 Subjects--Topical Terms: Hydrology--Research.Hydrology. LC Class. No.: GB665 / .G68 Dewey Class. No.: 551.49 / BOC