Rao, T S M <br/><br/>
Digital Numbrical Relays 
by T S M Rao 
 - New Delhi  Tata McGraw Hill  2008 
<br/><br/> Engineering 
<br/><br/><label>ISBN: </label>0-07-058855-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronics