Ferris, Julie. <br/><br/>
The Big Ideas The Changed The World  / 
Ferris, Julie. 
 - London :  DK ,  2010 
 - 256 pages. 
<br/><br/> pbk. 
<br/><br/><label>ISBN: </label>9781405356831 
<br/><br/><label>Subjects--Topical Terms: </label><br/>LIGHT BULB 
<br/><br/><label>Dewey Class. No.: </label>609 BIG-F