000			00300nam a2200133Ia 4500
100			_aCrawford/ M
942			_cRB
654			_aPollution Control
245			_aAir Pollution Control Theory
260			_bTata Mc Graw hill _aNew Delhi _c1980
082			_a628.53
300			_a624
546			_aENGLISH
999			_c24028 _d24028