00330nam a2200133Ia 4500008004100000041001200041082001600053100002200069245005200091250001200143260001600155300000800171500001700179231217s9999    xx            000 0 und d  aEnglish  a001.64  MIL  aMiller, Michael A 0aIntroduction to digital and data communications  a1st ed.  c1993bJaico  a435  a2012 Missing