00333nam 2231614 450000100060000000300230000600500090002900800410003808200110007902000180009010000100010826000240011825000060014224500410014831614StarLibrary Marc Built20180430201711 ||||| |||||||||||amh  a621.38 a9780072263350 aregis bMC GRAW,HILL c2007 a2 aVOICE & DATA COMMWNICATION HAND BOOK