=LDR 00000nam a2200000ui 4500 =001 2050 =008 250530s1978\\\\xx\|||||||||||||||||eng\d =082 04$a551.48 PIT =100 1\$aPitty, Alistair F. =245 10$aGeographical Approaches to Fluvial Processes =260 \\$aNorwich, England :$bGeo Abstracts Ltd,$c1978 =852 \\$bFreeman Library$cBooks$h551.48 PIT