=LDR 22 4500 =001 4752 =082 04$a551.3 5 =245 00$aResearch in fluvial geomorphology =260 \\$aNorwich :$bGeo Abstracts Ltd,$c1978 =650 \0$aBooks =700 1\$aDavidson-Arnott, R. =700 1\$aNickling, W. =852 \\$bFreeman Library$h551.3 5