00322nam 2200953 4500001000400000003002300004005000900027008004100036082001100077072001300088100002000101260002400121250000600145245002700151953StarLibrary Marc Built20180420201711 ||||| |||||||||||amh  a004.67 aComputer aJohn G. Proakis bMc Graw Hill c2008 a5 aDigital Communications