000 00355nam a2200145Ia 4500
008 230913s9999 xx 000 0 und d
082 _a621.382 VIS
100 _aViswanathan, Thiagrajan
245 0 _aTelecommunication Switcing System
260 _aNEW DELHI
260 _bPHI
260 _c1998
300 _a583
650 _aElectronics Engineering
999 _c131586
_d131586