000 00318nam a2200121Ia 4500
008 211209s1980 xx 000 0 und d
041 _aeng
082 _a628.5 N80 CRA/MAR
100 _aCRAWFORD
245 _aAIR POLLUTION CONTROL THEORY
260 _aNEW DELHI
_bTATA MCGRAW-HILL PUBLISHING CO.
_c1980
300 _a640
999 _c19503
_d19503