Stycos, J. Mayone. <br/><br/>
Family and fertility in Puerto Rico  a study of the lower income group / J. Mayone Stycos. 

 - New York,  Columbia University Press  1958. 
 - xv, 332 p.  ill., diagrs., forms, tables. 
<br/><br/> At head of title : Social Sciences Research Center College of Social Sciences, University of Puerto Rico.  "First volume of the final report of the Family Life Research Project undertaken by the Social Science Research Center." 
<br/><br/>Bibliography : p. [316]-322] 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fertlity.<br/>Marriage.--Puerto Rico.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Puerto Rico--Statistics, Vital.