000 00308nam a2200121Ia 4500
008 190711s9999 xx 000 0 und d
082 _a621.31915 062
100 _aOPPENHEIMER,S.L
245 0 _aDIRECT AND ALTERNATING CURRENTS
260 _aNEW YORK
_bMcGraw-Hill
_c1963
300 _a24X15
942 _cBK
_2DDC
999 _c12149
_d12149