Sears, P. B. <br/><br/>
Deserts on the march. 
P. B Sears 
 - Norman   Oklahoma   University of Oklahoma Press. 1947. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Deserts.
<br/><br/><label>LC Class. No.: </label>S 609 .S4