Lancaster, Don <br/><br/>
Active-filter cookbook / 
by Don Lancaster 
 - Carmel, Ind. :  Sams,  1975 
 - 240 p. :  ill. ;  22 cm. 
<br/><br/> Includes index 
<br/><br/>Bibliography : p. 234 
<br/><br/><label>ISBN: </label>0672211688  14.95 (17.95 Can) 
<br/><br/><label>LCCN: </label>74-33839 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric filters, Active