000 00349nam a2200145Ia 4500
008 170207s9999 xx 000 0 und d
082 _aPG 628.53 SHA-A4
100 _aSharma, B K
245 _aAir pollution
250 _a4
260 _bKrishana Prakashan Media Pvt. Ltd., India
260 _c2005
650 _aAir pollution
942 _cBOOKS
999 _c42063
_d42063