Mason, C. Russell.  <br/><br/>
The art and science of protective relaying / 
C. Russell Mason. 
 - New York :  John Wiley,  c 1956. 
 - xiv, 410 p. :  ill. ;  24 cm. 
 - General Electric Series. .
<br/><br/> Includes index. 
<br/><br/>Includes bibliography after each pages. 
<br/><br/>334  334 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science of protective relaying.
<br/><br/><label>Dewey Class. No.: </label>621.31 / M381a