The proceedings of the arid zone  proceedings 
Symposium on the Problems of the Arid Zone 
 - Paris  UNESCO  1962 
 - xii, 431 p.  25 cm. 
 - Arid zone research  xviii .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arid regions. Problems - Symposium<br/>Arid regions - Research.
<br/><br/><label>Dewey Class. No.: </label>551.415  / SYM-P