=LDR 22 4500 =001 2943 =082 04$a910.02 PIC =100 1\$aPickering, K. T. =245 10$aAn introduction to global environmental issues =260 \\$aLondonLondon :$bRoutledge,$c1994 =650 \0$aReserve =700 1\$aOwen, Lewis A. =852 \\$bFreeman Library$h910.02 PIC