Soil science society of America journal. / 
Soil Science Society of America. 
 - Volume 51 No.4 
 - Madison, Wis. :  Soil Science Society of America,  Jul-Aug 1987 
 - Varoius Pages:  Illustrations; 
<br/><br/><br/>In English 
<br/><br/> Pbk. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil Science Society of America--Soil Periodicals--United States
<br/><br/><label>Dewey Class. No.: </label>J 631.497 SOI 1987