000 00332nam a2200121Ia 4500
008 220201s2003 xx 000 0 eng d
082 _a621.381
_bVIS
100 _aViswanathan,Thiagarajan
245 0 _aTelecommunication switching systems & networks
260 _aDelhi
_bPrentice Hall of India
_c2003
300 _a583
942 _2ddc
999 _c36704
_d36704