Mercer, Ian. <br/><br/>
The changing earth / 
Ian Mercer. 
 - London:  Macmillan,  c 1986. 
 - 33 p. :  ill. ;  28 cm. 
 - Exploration and discovery. .
<br/><br/> Includes index. 
<br/><br/>314  314 
<br/><br/><label>ISBN: </label>0 333 275438 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Changing earth.<br/>Geology -- Juvenile literature.
<br/><br/><label>Dewey Class. No.: </label>551.12 / M535c