| 000 | 00453nam a22001697a 4500 | ||
|---|---|---|---|
| 999 |
_c22843 _d22843 |
||
| 005 | 20210309104435.0 | ||
| 008 | 210309b ||||| |||| 00| 0 eng d | ||
| 020 | _a0862492459 | ||
| 041 | _aeng | ||
| 082 | _a621.382 B545p | ||
| 100 | _aBiswas, Nripendra N. | ||
| 245 |
_aPrinciples of telegraphy _cNripendra N. Biswas |
||
| 260 |
_aBombay _bMedia Promoters & Publishers Pvt. Ltd. _c1964 |
||
| 300 | _ax, 185p. | ||
| 650 | _aTelegraph | ||
| 942 | _cBK | ||