Van Valkenberg, M E <br/><br/>
Analog filter design 

 - 1st 
 - Fort Worth  Harcourt Brace Jovanovich College  1982 
 - xi,608p p. 
<br/><br/><label>ISBN: </label>0-03-059246-1 
<br/><br/><label>Subjects--Index Terms: </label>Electric filters, Active