| 000 | 00346 a2200073 4500 | ||
|---|---|---|---|
| 245 | 0 |
_aCCITT Plenary Assembly (Yellow Book) Geneva, 1980 : _bSpecifications of Signalling System No.7, Recommendations Q.701-Q.741 (Study Group XI) / _c. _nVol.VI-6 |
|
| 710 | 2 |
_aInternational Telecommunication Union. _eWydawca _4pbl |
|
| 260 |
_aGeneva : _bITU, _c1981. |
||
| 300 |
_aV, 328 s.; _c30 cm. |
||
| 999 |
_c13965 _d13965 |
||