Calder, Ritchie. <br/><br/>
Men against the desert 

 - 2 ed. 
 - London :  George Allen,  1958 
 - 208 p.  : ilus. 
<br/><br/><label>LCCN: </label>70392 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Desiertos.<br/>Tierras--Recuperación de.
<br/><br/><label>Dewey Class. No.: </label>631.6  / C35 1958