=LDR 22 4500 =001 2973 =082 04$a338.927 ROG =100 1\$aRogers, Peter P. =245 10$aAn introduction to sustainable development =260 \\$aLondon :$bEarthscan,$c2008 =650 \0$aReserve =700 1\$aBoyd, John A. =700 1\$aJalal, Kazi F. =852 \\$bFreeman Library$h338.927 ROG