Soil Science./ 
The State University 
 - Volume 105 
 - Maryland:  The williams & Wilkins Company,  Dec, 1968 
 - Various Pages:  illustrations ; 
 - Number 6 .
<br/><br/><br/>In English 
<br/><br/> Pbk. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil science--Journal
<br/><br/><label>Dewey Class. No.: </label>J 630.2 SOI 1967