Lenk, John D. <br/><br/>
Simplified design of filter circuits / 
by John D. Lenk 
 - Boston :  Newnes,  1998. 
 - EDN series for Design Engineers\ .
<br/><br/><label>ISBN: </label>0750696559 
<br/><br/><label>Subjects--Index Terms: </label>Applied physics and engineering Electric Filters - Design And Construction 
<br/><br/><label>Dewey Class. No.: </label>621.381532