00318nam a2200109Ia 4500008004100000041000800041082001700049100002500066245005800091260005100149300000800200211209s2004    xx            000 0 und d  aeng  a621.3821 O04  aGARCIA, ALBERTO LEON  aCOMMUNICATION NETWORKS: FUNDAMENTAL CONCEPTS AND KEY   aNEW DELHIbTATA MCGRAW-HILL BOOK COMPANYc2004  a900