Tumin, Melvin <br/><br/>
Social class and social change in Puerto Rico 

 - New York :  Princenton University Press,  1971 
 - 549 p :  tab., ann., index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Enquête<br/>Structure sociale<br/>Éducation<br/>Société<br/>Travail<br/>Famille<br/>Mariage<br/>Changement social
<br/><br/><label>Subjects--Index Terms: </label>Puerto Rico