| 000 | nam a22 7a 4500 | ||
|---|---|---|---|
| 999 |
_c11491 _d11491 |
||
| 005 | 20220730104112.0 | ||
| 008 | 220730b xxu||||| |||| 00| 0 eng d | ||
| 020 | _a9788120350830 | ||
| 082 | _a621.3857 VIS | ||
| 100 | _aViswanathan,Thiagarajan | ||
| 100 | _aBhatnagar,Manav | ||
| 245 | _aTelecommunication Switching Systems and Networks | ||
| 250 | _a2/e | ||
| 260 |
_aDelhi _bPHI Learning Private Limited _c2020 |
||
| 300 | _aXX,620p. | ||
| 942 |
_2ddc _cGB |
||