| 000 | 00372 a2200097 4500 | ||
|---|---|---|---|
| 020 | _a9261042317 | ||
| 920 | _a92-61-04231-7 | ||
| 245 | 0 |
_aCCIR Plenary Assembly Duesseldorf, 1990 : _bRecommendations : Standard Frequencies and Time Signals / _c. _nVol.7+Annex |
|
| 710 | 2 |
_aInternational Telecommunication Union. _eWydawca _4pbl |
|
| 260 |
_aGeneva : _bITU, _c1990. |
||
| 300 |
_aXVI, 36 s.+Annex; _c30 cm. |
||
| 999 |
_c10701 _d10701 |
||