Llewellyn, Claire,  <br/><br/>
Our planet earth 

 - 77 pages :   colour illustrations ;   27 cm 
 - First encyclopedia .
 - First encyclopedia .
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>1843010291 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth sciences
<br/><br/><label>Dewey Class. No.: </label>550