000 00350nam a22001337a 4500
003 OSt
008 160801t xxu||||| |||| 00| 0 eng d
082 _a 628.39
_b GUP
100 _aGupta, Om Prakash 15973
245 _aElements of environmental pollution
260 _aKhanna book publishing
_bNew Delhi
300 _a Xiii,858p
942 _2ddc
_cBK
999 _c353452
_d353452