Sears, Paul Bigelow. <br/><br/>
Desets on the march 

 - 2 ed. 
 - Norman :  University of Oklahoma,  1947 
 - 178 p.  : ilus. 
<br/><br/><label>LCCN: </label>53037 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Desiertos.
<br/><br/><label>Dewey Class. No.: </label>551.45  / S43 1947