00292nam a2200097Ia 4500100003400000654004000034245005400074260004500128082000900173546001200182  aMcgillem/ C.D./ Cooper/ G.R.   aDiscrete signal and system analysis  aContinues and Discrete signal and system analysis  bSaunders college pubaPhiladelphiac1991  a3.83  aENGLISH