Kononova M M <br/><br/>
Soil organic matter: Its nature, its role in soil formation and in soil fertility 

 -  1961 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>53213 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Soil fertility<br/>Agriculture
<br/><br/><label>Dewey Class. No.: </label>J:25, K1