Tomecek, Stephen M. <br/><br/>
What a great idea! :  inventions that changed the world / 
by Stephen M. Tomecek; illustrated by Dan Stuckenschneider. 
 - New York, NY :  Scholastic Inc,  2003. 
 - p.  cm. 
<br/><br/> Includes index, bibliography, Web sites, and contests. 
<br/><br/><label>ISBN: </label>0-590-68144-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Inventions--History