| 000 | 00457cam a2200169ua 4500 | ||
|---|---|---|---|
| 020 | _cRs.10.60 | ||
| 041 |
_aeng _h |
||
| 082 |
_a621.38151 _bWIT/TH |
||
| 100 | _aWitts, Alfred T. | ||
| 245 |
_aThermionic valve in modern radio receivers / _cAlfred T Witts. _hTextual Documents |
||
| 260 |
_aLondon : _bSir Isaac Pitman & Sons Ltd , _c1947. |
||
| 300 | _a218 ; . | ||
| 365 | _aRs.10.60 | ||
| 504 | _a | ||
| 942 | _cBK | ||
| 999 |
_c255454 _d255454 |
||