| 000 | 00327nam a22001097a 4500 | ||
|---|---|---|---|
| 082 | _a621.381542 GEW'P | ||
| 100 |
_aGEWARTOWSKI, J. W _980680 |
||
| 245 | _aPRINCIPLES OF ELECTRON TUBES INCLUDING GRID CONTROLLED TUBES MICROWAVE TUBES AND GAS TUBES | ||
| 260 |
_aNEWJERSCY _bD. VAN NOSTRAND _c1965 |
||
| 300 | _a655P | ||
| 942 | _cBK | ||
| 999 |
_c585579 _d585579 |
||