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| 999 |
_c55554 _d55554 |
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| 005 | 20220221112604.0 | ||
| 008 | 180710s9999 xx 000 0 und d | ||
| 041 | _aEN | ||
| 082 |
_a621.31913 _bDUF _223 |
||
| 100 | _aDUFF, John R. | ||
| 245 |
_aAlternating current fundamentals _c/[by]John R.Duff |
||
| 260 |
_aNew York _bDelmar pub. _c1961 |
||
| 300 | _a110 p. | ||
| 509 | _aNS | ||
| 942 | _cS | ||