Schnitzer, M. <br/><br/>
Humic substances in the environment / 
M. Schnitzer, S.U. Khan. 
 - New York :  Marcel Dekker,  1972. 
 - vii, 327 p. : 
 - Books in soils and the environment .
<br/><br/><label>ISBN: </label>0824716140 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humus.
<br/><br/><label>Dewey Class. No.: </label>631.417  / Hu