=LDR 22 4500 =001 1896 =082 04$a551.48 GRE =100 1\$aGregory, K. J. =245 10$aFluvial Processes in Instrumented Watersheds: studies of small watersheds in the British Isles =260 \\$bInstitute of British Geographers,$c1974 =650 \0$aBooks =700 1\$aWalling, D. E. =852 \\$bFreeman Library$h551.48 GRE