Wolf, Benjamin <br/><br/>
Sustainable soils  : the place of organic matter in sustaining soils and their productivity 
Benjamin Wolf, George H. Snyder 
 - New York  Food Products Press  2003 
 - 352 p.  il. n.  21 cm 
<br/><br/><label>ISBN: </label>1560229179 
<br/><br/><label>Subjects--Index Terms: </label>Sostenibilidad Labranza de conservacion Conservacion de suelos Humus