| 000 | 00432nam a22001577a 4500 | ||
|---|---|---|---|
| 008 | 230616b |||||||| |||| 00| 0 eng d | ||
| 020 | _a0-210-22312-X | ||
| 040 |
_aNational Science Library _cNational Science Library |
||
| 080 |
_a621.395 _bL0 |
||
| 100 | _aBiswas, N N | ||
| 245 | _aPrinciples of telephony | ||
| 260 |
_aBombay: _bAsia Publishing House, _c1970 |
||
| 300 | _a136p. | ||
| 650 | _aTelephony | ||
| 942 |
_2udc _cBK |
||
| 999 |
_c44208 _d44208 |
||