TY  - BOOK
ED  - United Nations. Department of Economic and Social Affairs. Population Division
TI  - World population ageing: 1950-2050
SN  - 653a92-1-051092-5
U1  - 304.60723 UNI; 
PY  - 2002///
CY  - New York
PB  - United Nations
KW  - Aging - Research - 1950-2050
KW  - Population - Statistics
KW  - Demographic surveys
KW  - Population policy
ER  -