Modern thought 

 - India  Gandhiji University  1998 
 - 104 
<br/><br/><label>ISBN: </label>81 7225 157 2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English EssaysSCIENTISTS WHO HAVE CHANGED THE WORLD, ELECTRIC LIGHT
<br/><br/><label>Dewey Class. No.: </label>824  / PUB-M