| 000 | 00310 a2200097 4500 | ||
|---|---|---|---|
| 020 | _a9261066011 | ||
| 920 | _a92-61-06601-1 | ||
| 245 | 0 |
_aITU-R Report SM.2012. Economic Aspects of Spectrum Management / _c. |
|
| 710 | 2 |
_aInternational Telecommunication Union. _eWydawca _4pbl |
|
| 260 |
_aGeneva : _bITU, _c1997. |
||
| 300 |
_a59 s.; _c30 cm. |
||
| 999 |
_c554 _d554 |
||