DUFF, John R. <br/><br/>
Alternating current fundamentls 
/[by] Duff, John R. 
 - New York  Delmar pub.  1980 
 - vii, 582 p. 
<br/><br/> Includes appendix and index.<br/> 
<br/><br/><label>ISBN: </label>827311427 
<br/><br/><label>Dewey Class. No.: </label>621.31913  / DUF