(1988). Economic and social implications of population aging: Proceedings of the International Symposium on Population Structure and Development, Tokyo, 10 - 12 September 1987. United Nations.
Chicago-Zitierstil (17. Ausg.)Economic and Social Implications of Population Aging: Proceedings of the International Symposium on Population Structure and Development, Tokyo, 10 - 12 September 1987. New York: United Nations, 1988.
MLA-Zitierstil (9. Ausg.)Economic and Social Implications of Population Aging: Proceedings of the International Symposium on Population Structure and Development, Tokyo, 10 - 12 September 1987. United Nations, 1988.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.