=LDR 22 4500 =001 3229 =082 04$a551.447 FOR =100 1\$aFord, Derek =245 10$aKarst Geomorphology and Hydrology =260 \\$aLondon :$bChapman & Hall,$c1989 =650 \0$aBooks =700 1\$aWilliams, P. W. =852 \\$bFreeman Library$h551.447 FOR