000 00432nam a2200169Ia 4500
008 210723s9999||||xx |||||||||||||| ||und||
035 _a10872
082 _a621.381
_BTEL / VIS
100 _aViswanathan, Thiagarajan
245 0 _aTelecommunication Switching Systems And Networks.
250 _a-
260 _aNew Delhi
_bPrentice Hall Inc.
300 _a583
500 _a0
650 _aElectronic Engineering
942 _cBK
999 _c10872
_d10872