=LDR 00000nam a2200000ui 4500 =001 1234 =008 250530s1973\\\\xx\|||||||||||||||||eng\d =082 04$a551.4 GRE =100 1\$aGregory, Kenneth John =245 10$aDrainage basin form and process =260 \\$aLondon :$bEdward Arnold,$c1973 =852 \\$bFreeman Library$cBooks$h551.4 GRE