TY  - BOOK
AU  - UNITED NATION ECONOMIC AND SOCIAL AFFAIRS(Deptt of-).
ED  - UNITED NATION ECONOMIC AND SOCIAL AFFAIRS(Deptt of-).
TI  - Aging of population and its economic and social implication
T2  - "United States, Population Studies.26"
U1  - "Y:56.1-1.N5, J6/UN" 
PY  - 1956///
CY  - NY
PB  - United nation      
KW  - Fertility
ER  -