| 000 | 00436nam a2200181 4500 | ||
|---|---|---|---|
| 020 |
_a _c25 |
||
| 082 | _a621.385 BIS-P | ||
| 100 | _aBiswas, N N | ||
| 245 | _aPrinciples of telephony | ||
| 250 | _a | ||
| 260 |
_aAsia Publishing House, Bombay _c1994 |
||
| 300 | _a138 | ||
| 490 | _a | ||
| 500 | _a | ||
| 590 |
_arvr _b _c25 |
||
| 650 | _aWire telephony; Electronics and communication engineering; Applied physics | ||
| 942 | _cBK | ||
| 999 |
_c480418 _d480418 |
||