Penfold, R. A. <br/><br/>
Electronics :  build and learn / 
R.A. Penfold. 
 - London :   Newnes Technical Books,   1980. 
 - 104p. :   ill. ;   22cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0408004541 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic apparatus and appliances.