Oppenheim, Alan V., Schafer, Ronald W. <br/><br/>
Digital signal processing 

 - Delhi  Prentice-Hall of India  1994 
 - 586p, 22cm 
<br/><br/><label>ISBN: </label>8120305329 
<br/><br/><label>Dewey Class. No.: </label>001.64,  / D, opp