Nagpal, D. R. <br/><br/>
Vaidyut maapan aevam maapan upayantr / 
D. R. Nagpal 
 - 4th ed. 
 - New Delhi :  Standard Publishers Distributors,  2010. 
 - 492 p. :  ill. ;  21 cm. 
<br/><br/><label>ISBN: </label>8180140822 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electrical Engineering 
<br/><br/><label>Dewey Class. No.: </label>621.37  / NAG/V