| 000 | 00288 a2200073 4500 | ||
|---|---|---|---|
| 245 | 0 |
_aCCIR Plenary Assembly New Delhi, 1970 : _bIonospheric Propagation (Study Group 6) / _c. _nVol.2 Part 2 |
|
| 710 | 2 |
_aInternational Telecommunication Union. _eWydawca _4pbl |
|
| 260 |
_aGeneva : _bITU, _c1970. |
||
| 300 |
_a286 s.; _c24 cm. |
||
| 999 |
_c13297 _d13297 |
||