00347nam 2201362 45000010005000000030023000050050009000280080041000370820010000781000018000882600033001062500019001392450057001581362StarLibrary Marc Built20180713201711 ||||| |||||||||||amh  a620.3 abernard sklar bpearson prentice hall c1905 aالطبعة 2 adigital communication,foundamentals and applications