00522nam a2200157Ia 4500100003400000650002700034942000700061654002300068245005100091260004400142082001700186300000800203546001200211999001700223952012400240  aViswanathan/ G./ Thiagarajan   aElectrical Engineering  cBK  aTelecommunications  aTelecommunication switching systems & networks  bPrentice Hall of IndiaaNew Delhic1994  a621.382bPAN  a583  aENGLISH  c23232d23232  001040708CRCaCRCEbCRCEd2023-03-17eglobal booksg145.00l0o621.382 PANp7110r2023-03-17v145.00w2023-03-17yBK