=LDR 00000nam a2200000ui 4500 =001 4484 =008 250530s1983\\\\xx\|||||||||||||||||eng\d =082 04$a551.447 BAC =100 1\$aBack, William =245 10$aProcesses in karst hydrology =260 \\$aNew York :$bElsevier,$c1983 =700 1\$aLamoreaux, Philip E. =852 \\$bFreeman Library$cBooks$h551.447 BAC