000 00259nam a2200109Ia 4500
008 160710s1957 xx 000 0 und d
100 _aCALLAHAM,JOHN R. ED.
245 _aENGINEERING
260 _bCHEMICAL ENGINEERING
_c1957
300 _a340
942 _2ddc
_cB
999 _c36337
_d36337