000 00316nam a2200121Ia 4500
100 _aViswanathan, Thiagarajan
020 _a81-203-0713-5
942 _cBK
245 _aTelecommunication switching systems and networks
260 _aPrentice-Hall of India, New Delhi
_c2001
082 _a621.38 Vis
300 _axx,583
999 _c40421
_d40421