| 000 | 00415 a2200097 4500 | ||
|---|---|---|---|
| 020 | _a9261013619 | ||
| 920 | _a92-61-01361-9 | ||
| 245 | 0 |
_aCCITT GAS 5-1 Economic Studies at the National Level in the Field of Telecommunications (1977-1980) : _b1- Market Factors Affecting Telecommunication Demand / _c. |
|
| 710 | 2 |
_aInternational Telecommunication Union. _eWydawca _4pbl |
|
| 260 |
_aGeneva : _bITU, _c1982. |
||
| 300 |
_aI, 35 s.: _bil.; _c30 cm. |
||
| 999 |
_c1821 _d1821 |
||