| 000 | 00259 a2200073 4500 | ||
|---|---|---|---|
| 245 | 0 |
_aTelecommunication by Speech : _bThe transmission performance of telephone networks / _c. |
|
| 710 | 2 |
_aButterworths. _eWydawca _4pbl |
|
| 260 |
_aLondon : _bButterworths, _c1973. |
||
| 300 |
_a589 s.; _c24 cm. |
||
| 999 |
_c11107 _d11107 |
||