Graaff, J. de. <br/><br/>
Soil conservation and sustainable land use :  an economic approach / 
Jan de Graaff. 
 - Amsterdam :  Royal Tropical Institute,  c1993. 
 - 191 p. :  ill., maps ;  22 cm. 
 - Development oriented research in agriculture ;   4 .
<br/><br/>Includes bibliographical references (p. 179-190). 
<br/><br/><label>ISBN: </label>9068320424 
<br/><br/><label>LCCN: </label>93-171815 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil conservation--Africa<br/>Land use, Rural--Economic aspects--Developing countries.<br/>Sustainable agriculture--Economic aspects--Developing countries.
<br/><br/><label>Dewey Class. No.: </label>333.7