Direct current generations :   major types-english    

 - Crowborough :  Audio Viseal Source,   [19__]    
 - Videocassette;   19cm.    
 - Bergwall Production    .
<br/><br/> VHS/NTSC    
<br/><br/><label>ISBN: </label>20040000230    
<br/><br/><label>Subjects--Topical Terms: </label><br/>Current converters--electronics   <br/>Direct current generation   <br/>Major types