00349nam a2200133Ia 4500008004100000020001500041041001200056082001600068100001300084245006900097260002500166300000800191650001600199221030s9999    xx            000 0 und d  a8120310411  aEnglish  a105.23bBla  aU. Black 0aComputer Networks Protocols, Standards & Interfacescby U. Black  bPHIaNew Delhic2001  a436  aBE Computer