| 000 | 00319 a2200097 4500 | ||
|---|---|---|---|
| 020 | _a9261043917 | ||
| 920 | _a92-61-04391-7 | ||
| 245 | 0 |
_aCCITT Guidelines for Implementing a Signalling System No.7 / _c. |
|
| 710 | 2 |
_aInternational Telecommunication Union. _eWydawca _4pbl |
|
| 260 |
_aGeneva : _bITU, _c1991. |
||
| 300 |
_aIX, 104 s.: _bil.; _c30 cm. |
||
| 999 |
_c1839 _d1839 |
||