Tretter,Steven A. <br/><br/>
Introduction to discrete signal processing/ 
Steven A.Tretter 
 - New York:b John wiley and sons,  1976 
 - xiv,460p.:ill 
<br/><br/> include bibliographical refrence 
<br/><br/><label>ISBN: </label>471887609 
<br/><br/><label>LC Class. No.: </label>QA 402