Sobol Donald J. <br/><br/>
Encyclopedia Brown  And the case of the secret UFOs 
Sobol Donald J. 
 - 1a ed. 
 - U.S.A.  Scholastic  2011 
 - 84 p.  il  19 cm. 
<br/><br/><label>ISBN: </label>978-0-545-41710-5 
<br/><br/><label>Dewey Class. No.: </label>INGLES-0008