Sleva, Anthony F. 	 <br/><br/>
Protective Relay Principles 

 - 1 
 - New York  CRC Press  2009 
 - xvi+368p. 
<br/><br/><label>ISBN: </label>978-082475372 
<br/><br/><label>Universal Decimal Class. No.: </label>621.316.925  / SLE.09