Terrell, Trevor J. <br/><br/>
Introduction to digital filters / 
Trevor J. Terrell. 
 - London :  Macmillan,  c1980. 
<br/><br/> "A Halsted Press book."  Includes index. 
<br/><br/><label>ISBN: </label>047026909X 
<br/><br/><label>LCCN: </label>79025409 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric filters, Digital.
<br/><br/><label>LC Class. No.: </label>TK7872.F5  / T5 1980 
<br/><br/><label>Dewey Class. No.: </label>621.3815/324