Bowron, P. <br/><br/>
Active filters for communications and instrumentation / 
P. Bowron and F. W. Stephenson. 
 - London ;  New York :  McGraw-Hill Book Co.,  c1979. 
 - viii, 284 p., [2] p. of plates :  ill. (some col.) ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0070840865 (hbk.) 0070840857 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric filters, Active.