=LDR 22 4500 =001 1648 =082 04$a333.7 MAT =100 1\$aMather, A. S. =245 10$aEnvironmental resources =260 \\$aLondon :$bLongman,$c1995 =650 \0$aReserve =700 1\$aChapman, K. =852 \\$bFreeman Library$h333.7 MAT$zNot located