000 00303nam a2200121Ia 4500
008 160710s1939 xx 000 0 und d
082 _a621.319 MAG
100 _aMAGNUSSON,CARL EDWARD
245 _aALTERNATING CURRENTS
260 _bMCGRAW HILL BOOK COMPANY INC
_c1939
300 _a721
942 _2ddc
_cB
999 _c6777
_d6777