00309nam a2200121Ia 4500008004100000082001800041100002400059245003500083250000800118260003700126300000800163650001600171191201s2004    xx            000 0 und d  a621.3843bPHS  aPHILLIPS, Charles L 0aSignals Systems and Transforms  a3rd  aN.DelhibPearson Educationc2004  a765  aB.Tech(CSE)