World population ageing, 1950-2050 /
United Nations.Department of Economic and Social Affairs .Population Division.
New York : United Nations,
2002.
"United Nations Publication sales no. E.02.XIII.3"--t.p. verso.
"St/Esa/Ser.A/207".
Includes bibliographical references (p. 35-37)
Age distribution (Demography)
Older people
Population
Population