000 00503nam a2200205Ia 4500
003 BD-DhNLB
005 20230118131357.0
008 170917b2012 ii ||||| |||| 00| 0 eng d
020 _a9.7881313146e+012
040 _aBD-DhNLB
041 _heng
080 _a363.7392
100 _aM.G. Chitkara
_911678
245 0 _aAir polution/
260 _aNew Delhi
_bAPH publishing corporation
_c2012
300 _a264 p.:
_c23 cm.
650 _aEnvironment
_911567
942 _2ddc
_cBK
999 _c15637
_d15637