Pactitis, S. A. <br/><br/>
Active filters :  theory and design / 
S.A. Pactitis. 
 - Boca Raton :  CRC Press,  c2008. 
 - 274 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references (p. 269-270) and index. 
<br/><br/><label>ISBN: </label>1420054767 (alk. paper) 9781420054767 (alk. paper) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric filters, Active--Design and construction.