TY  - BOOK
AU  - "United Nations, International Economic and Social Affaris"
ED  - "United Nations, International Economic and Social Affaris"
TI  - Socio-ecnomic development and fertility decline in costa Rice
U1  - "X:770gY:5231.758.N8, M5/UN" 
PY  - 1985///
CY  - New
PB  - York United Nations USA    
KW  - Economic Development
ER  -