000 00296nam a2200133Ia 4500
008 160122s9999 xx 000 0 und d
041 _aEnglish
100 _aB K Sharma
245 _aAir Pollution
250 _a1st
260 _bMeerut:krishna pub
_c1999
300 _a203p.
650 _aElectronic
999 _c141
_d141