000			00259nam a2200097Ia 4500
008			160710s1955 xx 000 0 und d
100			_aCHEMICAL ENGINEERING
245			_aCHEMICAL ENGINEERING, FEB - JULY NO.1-2
260			_bMC GRAW HILL _c1955
942			_2ddc _cB
999			_c40131 _d40131