000 00319nam a2200121Ia 4500
008 220709b2006 xxu||||| |||| 00| 0 eng d
020 _a8120307135
082 _a
_b
100 _aViswanathan, Thiagarajan.
245 _aTelecommunication switching systems and networks
260 _aNew Delhi
_bPrentice hall of India
_c2006
300 _axx, 583p.
942 _cBooks
906 _a182282
981 _aNew Delhi: Prentice hall of India, 2006.
982 _axx, 583p.
983 _aTelecommunication switching systems and networks
999 _c158781
_d158781