Kumada, Kyoichí. <br/><br/>
Chemistry of soil organic matter 

 - Amsterdam :  Elsevier,  1987 
 - 241 p.  : gráfs. 
 - Developments in soil Science  ; 17 .
 - Developments in soil Science  ; 17 .
<br/><br/><label>LCCN: </label>63119 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humus.<br/>Suelos--Materia orgánica.
<br/><br/><label>Dewey Class. No.: </label>631.43  / K8