| 000 | 00343 a2200097 4500 | ||
|---|---|---|---|
| 020 | _a9261046215 | ||
| 920 | _a92-61-04621-5 | ||
| 245 | 0 |
_aCCITT GAS 9 Case Studies on the Progressive Introduction of ISDN in a National Network / _c. |
|
| 710 | 2 |
_aInternational Telecommunication Union. _eWydawca _4pbl |
|
| 260 |
_aGeneva : _bITU, _c1992. |
||
| 300 |
_a112 s.: _bil.; _c30 cm. |
||
| 999 |
_c1722 _d1722 |
||