Guide book to research data for arid zone development 

 - Paris :  UNESCO,  1957 
 - 191 p.  : ilus. 
 - Arid zone research  ; 9 .
 - Arid zone research  ; 9 .
<br/><br/><label>LCCN: </label>45867 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Regiones áridas.<br/>Regiones áridas--Investigación.
<br/><br/><label>Dewey Class. No.: </label>551.5943  / U54g