Bishop, Owen. <br/><br/>
Understand Electronic Filters 

 - New Delhi :  Butter Worth Heinemann,  c1996. 
 - 168 p.:  [D21] 
<br/><br/><label>ISBN: </label>0750626283 
<br/><br/><label>Dewey Class. No.: </label>621.3815324  / BIS/UND