| 000 | 00330nam a22001337a 4500 | ||
|---|---|---|---|
| 005 | 20220519105044.0 | ||
| 008 | 100312t xxu||||| |||| 00| 0 eng d | ||
| 082 |
_a621.3841 32 _bVAL |
||
| 245 | _aValves and semiconductors | ||
| 300 | _a336p. | ||
| 653 |
_aValves _aSemiconductors |
||
| 942 | _cBK | ||
| 260 |
_aBombay _bNorman Brothers |
||
| 999 |
_c266682 _d266682 |
||