Hatt, Paul K. <br/><br/>
Backgrounds of human fertility in Puerto Rico:   a sociological survey / 
Paul K.Hatt 
 - Princeton:  University Press,  1952 
 - xxvi, 512p.:  ill.;  25 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Puerto Rico<br/>Demography
<br/><br/><label>Dewey Class. No.: </label>312.0729  / HAT