Hayes, Michael Hilary Bermingham. <br/><br/>
Humic substances II in search of structure 

 - Chichester :  Wiley-Interscience,  1989 
 - 764 p. 
<br/><br/><label>LCCN: </label>6838 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Acido humico.<br/>Humus.<br/>Suelos--Fertilidad.
<br/><br/><label>Dewey Class. No.: </label>631.417  / H3