Tumin, Melvin M. <br/><br/>
Social class and social change in Puerto Rico / 
Melvin M. Tumin and Arnold S. Feldman. 
 - New Jersey :   Princeton UP,   c 1961. 
 - xxvi, 549 p. :  ill. ,  24 cm. 
<br/><br/> Includes index. 
<br/><br/>Bibliography : P. (741-763). 
<br/><br/>38  38 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social science.<br/>Social change.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Puerto Rico.
<br/><br/><label>Dewey Class. No.: </label>301.247295 / J831s