Loper,  Orla E. <br/><br/>
Direct Current Fundamentals 

 -  Delmar Publishers, Inc.  c1986 
<br/><br/> Includes index.  
<br/><br/><label>ISBN: </label>0827322348 
<br/><br/><label>Dewey Class. No.: </label>621.31912 L88 c4