Groundwater quality protection : a guide for water utilities, municipal authorities, and environment agencies / Stephen Foster,Ricordo Hirata,Daniel Gomes,Monica D'elia,Marta Paris. - vii, 103 p. : col. ill., col. maps ; 28 cm.. ISBN: 0821349511 Subjects--Topical Terms: HidrojeolojiHydrogeologyGroundwater--Quality LC Class. No.: TD426 / .G753 2002