Graaff, Jan de. <br/><br/>
Soil conservation and sustainable land use  : an economic approach 

 - Amsterdam, Royal Tropical Institute,  1993 
 - 191 p.  : ilus., gráfs. 
 - Development oriented research in agriculture .
 - Development oriented research in agriculture .
<br/><br/> No esta mutilado, está mal encuadernado 
<br/><br/><label>LCCN: </label>8130 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Suelos--Conservación.<br/>Tierras--Utilización.
<br/><br/><label>Dewey Class. No.: </label>631.45  / G7