Oppenheim, A.V & Schafer, R.W <br/><br/>
Discrete-time signal processing 
A.V. Oppenheim & R.W. Schafer 
 - New Delhi  Prentice Hall of India  1989 
 - xv  879 
<br/><br/><label>ISBN: </label>9788120307209 
<br/><br/><label>Dewey Class. No.: </label>621.382  / OPP