000 00300nam a2200121Ia 4500
008 160710s1941 xx 000 0 und d
082 _a665.5 NEL
100 _aNELSON,W.L
245 _aPETROLEUM REFINERY ENGINEERING
260 _bMCGRAW HILL BOOK COMPANY INC
_c1941
300 _a715
942 _2ddc
_cB
999 _c9215
_d9215