000			00257nam a2200097Ia 4500
008			160710s1956 xx 000 0 und d
100			_aCHEMICAL ENGINEERING
245			_aCHEMICAL ENGINEERING, JUN-JULY NO.6-7
260			_bMC GRAW HILL _c1956
942			_2ddc _cB
999			_c40135 _d40135