000 00301nam a2200121Ia 4500
008 170101s1952 xx 000 0 und d
082 _a621.3132 SIS
100 _aSiskind Charles
245 0 _aDirect Current Machinery
260 _bMcGraw Hill Book Co.
_c1952
300 _a319 p.
942 _2ddc
_cB
999 _c381716
_d381716