Beaumont, Peter. <br/><br/>
Drylands  : environmental management and development 

 - London :  Routledge,  1989 
 - 536 p. 
 - Routledge natural environmental : problems and management series .
 - Routledge natural environmental : problems and management series .
<br/><br/><label>LCCN: </label>43574 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultura--Regiones áridas.
<br/><br/><label>Dewey Class. No.: </label>631.0915  / B3