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| 005 | 20201216135616.0 | ||
| 008 | 201216b ii ||||| |||| 00| 0 eng d | ||
| 020 | _a9788120307131 | ||
| 040 | _csage library | ||
| 082 | _a621.382 | ||
| 100 |
_aViswanathan,Thiagarajan _91460 |
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| 245 | _aTelecommunication switching systems and networks / | ||
| 250 | _a- | ||
| 260 |
_bPHI _aN. Delhi _c2011 |
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| 300 | _a583p. | ||
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_cBK _2ddc |
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