Walker, Sally M. <br/><br/>
Studying soil / 
Sally M. Walker. 
 - Minneapolis :  Lerner,  ©2013. 
 - 40 pages :   color illustrations ;   24 cm. 
 - Searchlight books. Do you dig earth science? .
<br/><br/>Includes bibliographical references (p. 39) and index. 
<br/><br/><label>ISBN: </label>9781467700238 (hardback) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soils--Juvenile literature.
<br/><br/><label>Dewey Class. No.: </label>J 577.57 WALK