| 000 | 00400 a2200109 4500 | ||
|---|---|---|---|
| 020 | _a9271021444 | ||
| 920 | _a92-71-02144-4 | ||
| 245 | 0 |
_aGeneral Information Relating the Operation of the International Telegraph Data Transmission and Telematic Services / _c. _nsuppl.1 |
|
| 250 | _a3 edition. | ||
| 710 | 2 |
_aInternational Telecommunication Union. _eWydawca _4pbl |
|
| 260 |
_aGeneva : _bITU, _c1987. |
||
| 300 |
_a130 s.; _c30 cm. |
||
| 999 |
_c1848 _d1848 |
||