00510nam a2200193Ia 4500008004100000020001800041041001200059082001800071100003200089245005300121260001400174365001900188366001300207500000800220541003300228563001200261652002300273852002000296141108s9999    xx            000 0 und d  a81-203-0713-5  aEnglish  a621.3821  THI  aTHIAGARAJAN AND VISWANATHAN  aTELECOMMUNICATION SWITCHING SYSTEMS AND NETWORKS  bPHIc1992  b195.00dRupees  ePURCHASE  a583  aALLIEDd06-10-1999cSupplier  aWRAPPER  aTELECOMMUNICATIONS  aCENTRAL LIBRARY