| 000 | 00454nam a22001697a 4500 | ||
|---|---|---|---|
| 003 | BD-ChCU | ||
| 005 | 20251116114325.0 | ||
| 008 | 251116b bg ||||| |||| 00| 0 ben d | ||
| 040 | _cBD-ChCU | ||
| 082 | _a537.53 SPV | ||
| 100 |
_aSpangenberg , Karl R. _916185 |
||
| 245 |
_aVacuum tubes./ _cR. Karl , Spangenberg. |
||
| 260 |
_aNew York : _bMcgraw - Hill , _cC 860p |
||
| 300 | _axvii , 860p. | ||
| 650 | 0 |
_aElectronics. _916188 |
|
| 942 |
_2ddc _cBK _n0 |
||
| 999 |
_c109462 _d109462 |
||