| 000 | 00436nam a22001457a 4500 | ||
|---|---|---|---|
| 008 | 230615b |||||||| |||| 00| 0 eng d | ||
| 040 |
_aNational Science Library _cNational Science Library |
||
| 080 |
_a621.317.72:621.38 _bH1 |
||
| 100 |
_aRider, John F _911166 |
||
| 245 | _aVaccum tube voltmeters | ||
| 260 |
_aNew York City: _bJohn F. Rider Publisher, Inc., _c1941 |
||
| 300 | _axi, 179p. | ||
| 650 | _aScience | ||
| 942 |
_2udc _cBK |
||
| 999 |
_c43882 _d43882 |
||