Van Valkenburg, M. E.   1921-1997. <br/><br/>
Analog filter design /  [Books]. 
M.E. Van Valkenburg.  
 - New York :   Holt, Rinehart, and Winston,   1982. 
 - xi, 608 p. :   ill. ;   25 cm. 
 - HRW series in electrical and computer engineering .
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. 601-604. 
<br/><br/><label>ISBN: </label>0030592461 
<br/><br/><label>LCCN: </label>81023774 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric filters, Active.<br/>Operational amplifiers.