| 000 | 00547nam a2200217zu 4500 | ||
|---|---|---|---|
| 008 | |||
| 040 | _beng | ||
| 041 | _aeng | ||
| 082 | 0 | 4 |
_a621.3842 _bL438 |
| 245 | 1 | 0 | _aLearning the radiotelegraph code / |
| 250 | _a9. | ||
| 300 |
_a48p. : ill. ; _c24 cm. |
||
| 650 | 4 | _aEngineering | |
| 655 | 4 | _aRadio broadcasting. | |
| 655 | 4 | _aRadio frequency allocation. | |
| 655 | 4 | _aRadio equipment. | |
| 655 | 4 | _aTelecommunication codes. | |
| 942 | _cBOOK | ||
| 999 |
_c99580 _d99580 |
||
| 264 |
_aConnecticut : _bThe American Radio Relay League, _c1961. |
||