Mason, C. Russell <br/><br/>
The art and science of protective relaying 

 - New York  John wiley  1956 
 - xiv,410p. 
<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Dewey Class. No.: </label>500  / MAS