Shields, Amy, <br/><br/>
First big book of why / 
by Amy Shields. 
 - Washington, D.C. :  National Geographic,  2011. 
 - 126 pages :  color illustrations. ;  26 cm. 
 - National Geographic little kids .
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9781426307935 (hardcover : alk. paper) 9781426307928 (library binding : alk. paper) 
<br/><br/><label>LCCN: </label>2010043147 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Children's questions and answers.
<br/><br/><label>LC Class. No.: </label>AG195  / .S46 2011 
<br/><br/><label>Dewey Class. No.: </label>031.02