Warrington, Albert Russell van Cortlandt. <br/><br/>
Protective relays: their theory and practice / 
Albert Russell van Cortlandt Warrington. 
 - New York:  Wiley,  [1962- 
 - xv, 484 p. ;  26 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric relays.
<br/><br/><label>Dewey Class. No.: </label>621.317 WAR