| 000 | 00537pam a2200181a 44500 | ||
|---|---|---|---|
| 008 | 160408b1978 xxu||||| |||| 00| 0 eng d | ||
| 082 |
_a621.385 _bSm66tt3 |
||
| 100 | _aSmith, Sydney F. | ||
| 245 | 1 |
_aTELEPHONY AND TELEGRAPHY _cAN INTRODUCTION TO INSTRUMENTS AND SWITCHING SYSTEMS (ELECTROMECHANICAL AND REED-ELECTRONICS) |
|
| 250 | _a3rd | ||
| 260 |
_aOxford _bUniversity Press _c1978 |
||
| 300 | _ax,278 | ||
| 650 | _aTelecommunication | ||
| 650 | _aTelephone | ||
| 650 | _aTelegraph | ||
| 964 | _gCIRC | ||
| 997 | _aA60526 s C | ||
| 999 |
_c299988 _d299988 |
||