TY  - BOOK
AU  - Westoff, Charles F
AU  - Potter, Robert G
AU  - Sagi, Philip C
TI  - The third child: a study in the prediction of fertility 
AV  - HB 891 W4
PY  - 1963///
CY  - Princeton, N.J.
PB  - Princenton University
KW  - Fertilidad humama
KW  - Familia -
KW  - Dimensiones
ER  -