Martin, Ann M. <br/><br/>
Claudia and the Genius of Elm Street (The Baby-Sitters Club #49). 

 - 145  p. 
<br/><br/> Claudia and the Genius of Elm Street (The Baby-Sitters Club #49) by Ann M. Martin (1991) 
<br/><br/><label>ISBN: </label>0590449702