000 00395nam a2200133Ia 4500
008 131023s9999 xx 000 0 und d
020 _a9788120307131
082 _a621.382
_bVIS
100 _aViswanathan, T.
245 _aTelecommunication Switching System & N/W
260 _aNew Delhi
_bPHI
_c2012
650 _aTelecommunication N/W
_bElectronic Communication Engineering
942 _2ddc
_cBK
_019
999 _c3152
_d3152