Stevenson, F. J. <br/><br/>
Humus chemistry ;   genesis, composition, reactions /  
by F.J. Stevenson. 
 - 2nd ed. 
 - New York :  Wiley,  1994. 
 - xiii, 496 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0471594741 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humus.<br/>Soil biochemistry.
<br/><br/><label>Dewey Class. No.: </label>631.417  / STH