Oppenheim, Alan V. <br/><br/>
Digital signal processing   
by Alan V. Oppenheim and Ronald W. Schafer. 
 - New Delhi  PHI  1989 
 - xiv, 585p  includes bibl. 
<br/><br/><label>ISBN: </label>0876925328 
<br/><br/><label>Dewey Class. No.: </label>621.3819582  / N89