Williams, A.B. <br/><br/>
Electonic filter design handbook 

 - New York  Mcgraw-Hill Book Co.  1981 
 - xiv,12-116p.  23cm. 
<br/><br/><label>ISBN: </label>0070704309 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Electric filters
<br/><br/><label>Dewey Class. No.: </label>621.3815324  / W52E