=LDR 22 4500 =001 5939 =082 04$a333.91 MCD =100 1\$aMcDonald, A. =245 10$aWater resources =260 \\$aLondon :$bLongman Scientific & Technical,$c1988 =650 \0$aBooks =700 1\$aKay, David =852 \\$bFreeman Library$h333.91 MCD$zNot located