TY  - BOOK
AU  - "United Nations, International Economic and Social Affairs (Deptt.of-)"
ED  - "United Nations, International Economic and Social Affairs (Deptt.of-)"
TI  - Socio-eocnomic development and fertility decline: " Columbia, Costa Rica, Sri Lanka and Tunicia"
U1  - "Y:5231.1(X).N9, N1/UN" 
PY  - 1991///
CY  - NY
PB  - UN       
KW  - Fertility
ER  -