Dahl, Michael. <br/><br/>
Penguin says "please" 
Michael Dahl 
 - ed. 
 - [S.l.]  Picture Window Books  2012 
 - [20] p. 
 - Dahl, Michael. Hello genius .
 - Dahl, Michael. Hello genius .
<br/><br/><label>ISBN: </label>9781404867888 (board book)