=LDR 00000nam a2200000ui 4500 =001 4455 =008 250530s2003\\\\xx\|||||||||||||||||eng\d =082 04$a333.91 CEC =100 1\$aCech, Thomas V. =245 10$aPrinciples of water resources: history, development, management and policy =260 \\$aNew York :$bJohn Wiley,$c2003 =852 \\$bFreeman Library$cBooks$h333.91 CEC