000 00391nam a2200133Ia 4500
008 220217s9999||||xx |||||||||||||| ||und||
020 _a81-203-0713-5
082 _a621.382 VIS
100 _aViswanathan, Thiagarajan
245 0 _aTelecommunication switching systems and networks
260 _aPrentice hall of india
_bNew Dehli
_c2001
300 _b195
650 _aTELECOMMUNICATION
999 _c168232
_d168232