00457nam 2229174 450000100060000000300230000600500090002900800410003808200100007907200240008902000220011310000220013526000240015724500360018165000240021765000130024165000230025429174StarLibrary Marc Built20180430201711 ||||| |||||||||||amh  a004.6 adata communications a978-81-203-3078-8 aWilliam A. Covino bPRENTIS HALL c2007 adata and computer communcations adata communications aoverview awide area networks