Prakash, Chetan Sharma <br/><br/>
Thomas Alva Edison  An al time great inventor who devised more than 1000 original inventions 

 - 4th 
 - New Delhi  Manoj  2014 
 - 146p. 
<br/><br/><label>ISBN: </label>9788131009635 
<br/><br/><label>Dewey Class. No.: </label>925  / THO