Kononova, M. M. <br/><br/>
Soil organic matter ; ist nature, its role in soil formation and in soil fertility 

 - New York :  Pergamon,  1961 
 - 450 p.  : ilus. 
<br/><br/><label>LCCN: </label>28612 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humus.
<br/><br/><label>Dewey Class. No.: </label>631.43  / K65