00437nam a2200157Ia 4500008004100000020001600041082001600057100001900073245004500092250000800137260004200145300002400187500001900211600003400230650001500264240925s9999    xx            000 0 und d  a97831725436  a621.382 COU  aCouch ,Leon W. 0aDigital and Analog Communication Systems  a1st  aNew Delhi:bPearson Educationc,2010.  a939p.bNAfOriginal  aIncludes Index  aTelecommunication Engineering  aTechnology