Humic substances : molecular details and applications in land and water conservation 
edited by Elham A. Ghabbour, Geoffrey Davies 
 - London  Taylor and Francis  2005 
 - xviii, 268 p. : ill. ; 24 cm 
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9781591690313 
<br/><br/><label>ISSN: </label>2004027414 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humus<br/>Soil chemistry<br/>Soils - Humic acid content<br/>Water chemistry
<br/><br/><label>Dewey Class. No.: </label>631.417 GHA