Biological Approaches to Sustainable Soil Systems 
Uphoff, Norman ( Editor ) 
 - Lonon:   CRC Press;   2006 
 - xi, 764p.  ill.  26cm 
<br/><br/><label>ISBN: </label>978-1-57444-583-1 
<br/><br/><label>LC Class. No.: </label>S591  / .U63  2006