00340nam a2200133Ia 4500008004100000020001500041041001200056082001600068100001500084245005200099260003100151300000800182650001600190221030s9999    xx            000 0 und d  a8188114154  aEnglish  a105.23bHus  aF. Hussain 2aA Text Book of Signals & Systemscby F. Hussain  bUmesh PubaNew Delhic2004  a706  aBE Computer