TY  - BOOK
AU  - Stycos, J. Mayone
AU  - Puerto Rico University
TI  - Family und fertility in Puerto Rico: a study of the lower income group 
AV  - HB 965 S8
PY  - 1955///
CY  - New York
PB  - Columbia University
KW  - Fecundidad
KW  - Matrimonio -
KW  - Puerto Rico
KW  - Puerto Rico -
KW  - Estadística vital
N1  - At head of tittle: Social Science 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 Sciences Research Center"; Incluye bibliografía
ER  -