00449nam 2200992 4500001000400000003002300004005000900027008004100036082001000077072002400087020002100111100002400132260002400156250000700180245003900187650002400226650001900250992StarLibrary Marc Built20180430201711 ||||| |||||||||||amh  a004.6 aData Communications a978-007-125442-7 abehrouz a. forouzan bMC GRAW,HILL c2007 a16 aData Communications and networking aData Communications aand networking