Mason, C. Russell <br/><br/>
The art and science of protective relaying. 
C. Russell Mason 
 -  c.1956 
<br/><br/><label>ISBN: </label>0471575526 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric relays--EE
<br/><br/><label>Dewey Class. No.: </label>621.317 MAS