Krull, Kathleen. <br/><br/>
The boy who invented TV  the story of Philo Farnsworth 
Kathleen Krull 
 - 1st Dragonfly Bks. ed. 
 - [S.l.]  Dragonfly Books  2009 
 -  p. 
<br/><br/><label>ISBN: </label>9780385755573