Rao,TMS <br/><br/>
Power system protection static relays 

 - 2nd 
 - New Delhi  Tata McGraw Hill Education Limited  1989 
 - 722 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electrical Engineering
<br/><br/><label>Dewey Class. No.: </label>621.3  / RA-P