000 00299nam a2200121Ia 4500
008 160710s1937 xx 000 0 und d
082 _a660.28 WAL
100 _aWALKER
245 _aPRINCIPALS OF CHEMICAL ENGINEERING
260 _bMc GRAW-HILL BOOK CO.INC
_c1937
300 _a749
942 _2ddc
_cB
999 _c16501
_d16501