| 000 | 00283 a2200073 4500 | ||
|---|---|---|---|
| 245 | 0 |
_aCCITT Economic and Technical Aspects of the Choice of Transmission Systems / _c. _nPart A,B |
|
| 710 | 2 |
_aInternational Telecommunication Union. _eWydawca _4pbl |
|
| 260 |
_aGeneva : _bITU, _c1969. |
||
| 300 |
_akilka liczb.; _c24 cm. |
||
| 999 |
_c13376 _d13376 |
||