00316nam 2202449 45000010005000000030023000050050009000280080041000370820008000780200015000861000019001012600028001202450036001482449StarLibrary Marc Built20180420201711 ||||| |||||||||||amh  a621 a0074621823 aGeorge kennedy bTat mc Graw-hill c1994 aElectronic Communication system