Penfold, R. A. <br/><br/>
Electronics-build and learn  [Books]. 
R. A. Penfold. 
 - 2nd ed. 
 - New Delhi  B.P.B. Publications  1990 
 - Pages: 111 
<br/><br/><label>ISBN: </label> 0.00 
<br/><br/><label>Subjects--Personal Names: </label><br/>Electronic apparatus and appliances.
<br/><br/><label>Dewey Class. No.: </label>TK/7870  / PEN