The rural land classification program of Puerto Rico. 

 - Evanston, Ill.  1952. 
 - vii, 261 p.  ill., diagrs, maps (1 fold) 
 - Northwestern University studies in geography  no. 1 .
<br/><br/> At head of title : The William and Marian Haas Research Fund. 
<br/><br/>Includes bibliographical footnotes. 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Puerto Rico--Classification.