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| 008 | 250430s9999||||xx |||||||||||||| ||und|| | ||
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_aMUL _b621.3 |
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| 100 |
_aVISWANATHAN THIAGARAJAN _960667 |
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| 245 | 0 | _aTECCOMMUNICATION SWITCHING SYSTEMS AND NETWORKS | |
| 260 |
_bNEW CENTRAL BOOK AGENCY (P) LTD. _aCALCUTA |
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| 300 | _a583 | ||
| 942 | _cBK | ||
| 999 |
_c71438 _d71438 |
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