00343nam 2200943 4500001000400000003002300004005000900027008004100036082001100077072001300088100002200101260003300123250000600156245003700162943StarLibrary Marc Built20180420201711 ||||| |||||||||||amh  a004.67 aComputer aWilliam Stallings bPearson Education,inc c2011 a9 aData And Computer Communications