000 00265nam a2200109Ia 4500
008 160710s1952 xx 000 0 und d
100 _aSISKIND,C.S.
245 _aDIRECT-CURRENT MACHINERY
260 _aNEW YORK
_bMCGRAW HILL
_c1952
300 _a319
942 _2ddc
_cB
999 _c27027
_d27027