=LDR 22 4500 =001 2543 =082 04$a551.4 36 =245 00$aHillslope processes =260 \\$aLondon :$bAllen and Unwin,$c1986 =650 \0$aBooks =700 1\$aAbrahams, A. D. =852 \\$bFreeman Library$h551.4 36$zNot located