| 000 | 00353cam a2200145ua 4500 | ||
|---|---|---|---|
| 003 | OSt | ||
| 008 | 250108b |||||||| |||| 00| 0 eng d | ||
| 041 | _aeng | ||
| 082 |
_a621.384 _bTUC/MO |
||
| 100 |
_aTucker, D G . _96873 |
||
| 245 | _aModulaters and frequency changers / | ||
| 260 |
_aLondon : _bMcDonald , _c1953. |
||
| 300 | _a232 ; . | ||
| 942 | _cBK | ||
| 999 |
_c9159 _d9159 |
||