Ghabbour, Elham. A <br/><br/>
Understanding humic substances: advanced methods, properties and applications 
Elham A.Ghabbour, Geoffrey Davies 
 - New Delhi  The royal society of chemistry  1999 
 - 286 p 
<br/><br/><label>ISBN: </label>9780854047994 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technology
<br/><br/><label>Dewey Class. No.: </label>631.417 GHA