00338nam a2200121Ia 4500100003400000650002700034654002300061245005100084260004400135082001700179300000800196546001200204  aViswanathan/ G./ Thiagarajan   aElectrical Engineering  aTelecommunications  aTelecommunication switching systems & networks  bPrentice Hall of IndiaaNew Delhic1994  a621.382bPAN  a583  aENGLISH