Norman w. Hudson <br/><br/>
Soil and Water Conservation In Semi-arid Areas 

 -  FAO   1987 
 - 172 
<br/><br/><label>ISBN: </label>92-5-102606-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Conservation
<br/><br/><label>Dewey Class. No.: </label>631.45/H867S