Penfold, R. A. <br/><br/>
Practical electronic building blocks / 
by R.A. Penfold. Book 1. 
 - Shepherds Bush road, London :   Bernard Babani Pub. Ltd.,   1983 
 - 110p. :   ill. ;   c 18cm. 
<br/><br/><label>ISBN: </label>0859340929 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic circuits--Amateurs' manuals.