| 000 | 00393pam a2200145a 44500 | ||
|---|---|---|---|
| 008 | 140414b1953 xxu||||| |||| 00| 0 eng d | ||
| 082 |
_aD66,297 _bHAL J3 |
||
| 100 | _aHALLOWS, R W | ||
| 245 |
_aIntroduction to Valves _c |
||
| 260 |
_aLONDON _bWIRELESS WORLD _c1953 |
||
| 650 | _aVACUUM-TUBES | ||
| 690 | _aELECTRONICS AND COMMUNICATION ENGINEERING | ||
| 700 | _aMILWARD, H K | ||
| 906 | _a28366 | ||
| 999 |
_c27133 _d27133 |
||