000 00284nam a2200121Ia 4500
008 160710s1946 xx 000 0 und d
082 _aGRI
100 _aGRIFFITHS,HUGH
245 _aTRANSACTIONS
260 _bINSTITUTION OF CHMICAL ENGINEERS
_c1946
300 _a140
942 _2ddc
_cB
999 _c9176
_d9176