Clarke G R <br/><br/>
The Study of soil in the field 

 - 5th 
 - Oxford  Clarendon Press USA          1971 
 - xi,145p.  cm. 
<br/><br/> Bibliography p. 139-41; Index:P143-44 
<br/><br/><label>ISBN: </label>0198541171 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural Geography
<br/><br/><label>Dewey Class. No.: </label>U672(J:1), L1