=LDR 22 4500 =001 1654 =082 04$a333.7 O'R =245 00$aEnvironmental science for environmental management =260 \\$aLondon :$bLongman,$c1994 =650 \0$aBooks =700 1\$aO'Riordan, Timothy =852 \\$bFreeman Library$h333.7 O'R