Schaumann, Rolf; Xiao Haiqiao; Van Valkenburg, M. E. ; <br/><br/>
Design of analog filters 

 - 2nd 
 - New York  Oxford University Press  2010 
 - 827p 
<br/><br/><label>ISBN: </label>9780195373943 
<br/><br/><label>Dewey Class. No.: </label>621.3815 SCH