| 000 | 00256 a2200073 4500 | ||
|---|---|---|---|
| 245 | 0 |
_aITU-T Recommendations G Series:Transmission Systems and Media / _c. |
|
| 710 | 2 |
_aInternational Telecommunication Union. _eWydawca _4pbl |
|
| 260 |
_aGeneva : _bITU, _c1994. |
||
| 300 |
_aSuppl.31; _c30 cm. |
||
| 999 |
_c15860 _d15860 |
||