000 00256nam a2200097Ia 4500
008 160710s1956 xx 000 0 und d
100 _aCHEMICAL ENGINEERING
245 _aCHEMICAL ENGINEERING,MAY-JUN. NO.5-6
260 _bMC GRAW-HILL
_c1956
942 _2ddc
_cB
999 _c40134
_d40134