MASON, C. RUSSELL <br/><br/>
THE ART AND SCIENCE OF PROTECTIVE RELAYING 

 - NEWYORK  JOHN WILEY  1956 
 - 410P 
<br/><br/><label>ISBN: </label>0-471-57552-6 
<br/><br/><label>Dewey Class. No.: </label>621.317 MAS'A