Baum, L. Frank,  1856-1919. <br/><br/>
The master key :  an electrical fairy tale founded upon the mysteries of electricity  [electronic resource] / 
by L. Frank Baum. 
 - Salt Lake City :  Project Gutenberg Literary Archive Foundation,  2007. 
 - 1 online resource :  digital, multiple file formats. 
<br/><br/> Freely available. 
<br/><br/>Human-read audiobook.  
<br/><br/><br/>Mode of access: World Wide Web.  
<br/><br/><br/>Applicable license: http://www.gutenberg.org/license  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electricity--Juvenile fiction.<br/>Fantasy--Juvenile fiction.<br/>Audiobooks.