000 00250nam a2200097Ia 4500
008 220201s9999 xx 000 0 eng d
100 _aNEVERS (NOEL DE)
245 0 _aAIR POLLUTION CONTROL ENGINEERING
260 _bMC.GRAW - HILL BOOK CO
942 _2ddc
999 _c97791
_d97791