000 00362nam a2200133Ia 4500
008 220901s2005 xx 000 0 eng d
020 _a8189253050
082 _a910.13337 P53
100 _aDas, R R
245 _aConcepts of environmental science
260 _aNew Delhi
_bPragon International Publishers
_c2005
650 _aEnvironment
_9479
942 _2ddc
_cBK
999 _c14616
_d14616