Barton,Kathleen    <br/><br/>
Regulated circuit /  
Barton,Kathleen-english 
 - Crowborough :  Audio Visual Source,       
 - Videocassette :  20:22min;   19cm.    
 - Bergwall Production-series3    .
<br/><br/> VHS/NTSC    
<br/><br/><label>ISBN: </label>20040000163    
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric circuits--parallel   <br/>Electric circuits--services