=LDR 00000nam a2200000ui 4500 =001 6192 =008 250611s1992\\\\xx\|||||||||||||||||eng\d =082 04$a551.49 HEA =100 1\$aHeath, Ralph C. =245 10$aIntroduction to Ground Water Hydrology =260 \\$aWesterville :$bNational Ground Water Association,$c1992 =700 1\$aTrainer, Frank W. =852 \\$cBooks$h551.49 HEA