Penfold, R. A. <br/><br/>
How to get your electronic projects working /  [Book]. 
by R.A. Penfold. 
 - London :   Bernard Babani (Publishing) Ltd,   1982 
 - 81p. :   ill. ;   18cm. 
<br/><br/><label>ISBN: </label>0859340856 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic apparatus and appliances--Testing.