| 000 | 00354pam a2200157a 44500 | ||
|---|---|---|---|
| 082 |
_a537.53 _bH39e3 |
||
| 100 | _aHenney, Keith | ||
| 245 | 1 | _aELECTRON TUBES IN INDUSTRY | |
| 250 | _a3rd | ||
| 260 |
_aN. Y. _bMcgraw-Hill _c1952 |
||
| 300 | _a353 | ||
| 650 | _aVacuum-Tubes | ||
| 700 | _aFahnestock, James D. | ||
| 964 | _gCIRC | ||
| 997 | _a6022 C | ||
| 999 |
_c430496 _d430496 |
||