Soil science :  Society of America / 
Soil Science Society of America 
 - Volume 35 
 - New York  Soil Science, Society of America  1971. 
 - 544 pages:  illustrations; 
<br/><br/> March-April 
<br/><br/><br/>In English. 
<br/><br/> Pbk. 
<br/><br/><label>Dewey Class. No.: </label>P630.2P PRO 1971