Planet earth. 

 - 1st. ed. 
 - London :  Glentree,  2006. 
 - 63 p. :  col. ill. ;  29 cm. 
 - Wonder why .
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>190558105x 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth--Juvenile literature.
<br/><br/><label>LC Class. No.: </label>QB631.4  / .P65 2006