Warrington ,A.R. Van C. <br/><br/>
Protective Relays: their theory and practice 

 - 3rd 
 - New York:  John Wiley & Sons  ,1977. 
 - Various pages  N.A  Original 
<br/><br/> Includes Index 
<br/><br/><label>ISBN: </label>412153807 
<br/><br/><label>Subjects--Personal Names: </label><br/>Electronic Engineering
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technology
<br/><br/><label>Dewey Class. No.: </label>621.317 WAR