Encyclopedia of earth 

 - 319 pages :  color illustrations ;  28 cm 
 - World Book discovery science encyclopedia  .
 - World Book discovery science encyclopedia. .
<br/><br/> Includes index 
<br/><br/> Primary 
<br/><br/><label>ISBN: </label>9780716675198 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth--Encyclopedias, Juvenile
<br/><br/><label>Dewey Class. No.: </label>550.3