TY  - BOOK
AU  - "United Nations , Economic and Social Development (Deptt of-)"
ED  - "United Nations , Economic and Social Development (Deptt of-)"
TI  - Sex and age distribution of the world population
U1  - "Y:5.1s, N2/UN/RR" 
PY  - 1992///
CY  - New
PB  - York United Nations USA    
ER  -