TY  - CHAP
A1  - Ryder, N.B. 
T1  - Cohort and period measures of changing fertility
Y1  - 1983
A3  - Bulatao, R.A.
A3  - Lee, R.D.
A3  - National Research Council (U.S.), Committee on Population and Demography, Panel on Fertility Determinants
T2  - Determinants of Fertility in Developing Countries
CY  - New York
PB  - Academic Press

ER  -