Lubkin, Yale Jay. <br/><br/>
Filter systems and design: electrical, microwave, and digital. 

 - Reading, Mass.,  Addison-Wesley Pub. Co.  [1970] 
 - viii, 212 p.  illus.  24 cm. 
<br/><br/><label>Subjects--Index Terms: </label>Electric filters  Delay lines 
<br/><br/><label>Dewey Class. No.: </label>621.381/532  / LUB