000 00379nam a2200145Ia 4500
008 221117s9999 xx 000 0 und d
082 _bVIS
100 _aVISHWANATHAN, T.
245 0 _aTELECOMMUNICATIONS SWITCHING SYSTEMS
250 _a1ST
260 _bPHI LEARNING PVT. LTD, NEW DELHI
_c2012
300 _a583
650 _aElectronics & Communication Eng.
942 _cBK
999 _c212993
_d212993