TY  - BOOK
AU  - Hatt,Paul K.
TI  - Backgrounds of human fertility in Puerto Rico : a sociological survey / Paul K. Hatt
PY  - 1952///
CY  - Princeton
PB  - Princeton University Press
KW  - Fertility
KW  - Local
KW  - Puerto Rico
KW  - Statistics, Vital
N1  - "Prepared under the joint auspices of the Social Science Research Center of the University of Puerto Rico and the Office of Population Research of Princeton University."
ER  -