Smith A D M <br/><br/>
Practical construction of pre-amps, tone controls,filters and attenuators 

 - Bernard babani ltd, England  1979 
 - iv,112 
<br/><br/><label>ISBN: </label>0-900162-80-5 
<br/><br/><label>Dewey Class. No.: </label>621.3893 Smi