000 00489nam a22001817a 4500
005 20220614020020.0
008 210916b |||||||| |||| 00| 0 eng d
040 _cOCLC
082 _a621.38215
100 _a Viswanathan Thiagarajan
245 _aTelecommunication Switching System & Network
250 _a4th
260 _aNew Delhi
_bPHI
_c2009
300 _aRIT21177
650 _vECE
_xTelecommunication Switching System & Network
760 _b4th
942 _2ddc
_cBK
_e4th
_n0
_02
999 _c29476
_d29476