The problems of the arid zone;  proceedings. 

 - [Paris]  UNESCO  [1962] 
 - Arid zone research ;  18 .
<br/><br/>Includes bibliographies. 
<br/><br/><label>LCCN: </label>62004920 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arid regions -- Congresses.--Arid regions -- Congresses.<br/>Nomads.
<br/><br/><label>LC Class. No.: </label>GB611  / .P3 1960 
<br/><br/><label>Dewey Class. No.: </label>333.73