| 000 | 00345 a2200085 4500 | ||
|---|---|---|---|
| 100 | 1 |
_aSmith, Sydney F.. _eAutor |
|
| 245 | 0 |
_aTelephony and Telegraphy A. : _bAn Introduction to Telephone and Telegraph Instruments and Exchanges / _cSmith Sydney F.. |
|
| 710 | 2 |
_aUniversity Press. _eWydawca _4pbl |
|
| 260 |
_aOxford : _bUniversity Press, _c1972. |
||
| 300 |
_aXV,285 s.; _c24 cm. |
||
| 999 |
_c12274 _d12274 |
||