000 00347nam a22001337a 4500
008 240924b |||||||| |||| 00| 0 eng d
020 _a81-203-0713-5
100 _aT Vishwanathan
245 _aTelecommunication Switching Systems & Networks
260 _aNew Delhi
_bPrentice Hall
_c1998
300 _a582
650 _aBB- ECE
942 _2ddc
_cBK
999 _c20926
_d20926