Johnson, David E. <br/><br/>
Rapid practical designs of active filters 

 - New York  John &Wiley  1975 
 - xi,264p.  23cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric filters
<br/><br/><label>LC Class. No.: </label>TK7872.F5J64