Porto Rico and its problems 
Survey staff, Victor S. Clark, director, Charles L. Dearing ... [et al.]. 
 - Washington, D.C.  Brooking Institution  1930. 
 - xxxv, 707 p.  ill.  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0405062168 (ed. 1975) 
<br/><br/><label>LCCN: </label>91014226 //r89 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Puerto Rico
<br/><br/><label>LC Class. No.: </label>F1975  / .C58 1930 
<br/><br/><label>Dewey Class. No.: </label>917.295