=LDR 22 4500 =001 2266 =082 04$a551.4 SMA =100 1\$aSmall, R. J. =245 10$aGeomorphology and hydrology =260 \\$aLondon :$bLongman,$c1989 =650 \0$aBooks =852 \\$bFreeman Library$h551.4 SMA$zNot located