Ram Badri <br/><br/>
Power system protection and switchgear 
Badri Ram; D N Vishwakarma 
 - 2nd ed. 
 - New Delhi :   Tata McGraw Hill Education,   ©2011. 
 - xvi, 670 p. :  ill. ;   23 cm. 
<br/><br/><label>ISBN: </label>007107774X 9780071077743 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Protective relays--EE, EL
<br/><br/><label>Dewey Class. No.: </label>621.317 RAM