Stilton, Geronimo. <br/><br/>
The Mona Mousa code. 

 - London :  Scholastic,  2005. 
 - 109 p. :  col. ill. ;  20 cm. 
 - Geronimo Stilton ; 15 .
<br/><br/><label>ISBN: </label>9780439661645 
<br/><br/><label>Nat. Bib. No.: </label>GBA6A2166  bnb 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>013618592  Uk 
<br/><br/><label>Dewey Class. No.: </label>853.92