Sears, Paul Bigelow <br/><br/>
Deserts on the March / 
Paul Bigelow Sears 
 - 2nd ed. 
 - Norman :  Oklahoma University Press ,  1947 
 - xi, 178p. ;  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural resources<br/>Economic conditions<br/>Economic aspects<br/>Agriculture
<br/><br/><label>Dewey Class. No.: </label>630  / SEA