(2007). World economic and social survey 2007, Development in an ageing world (60th anniversary ed.). United Nations.
Chicago-Zitierstil (17. Ausg.)World Economic and Social Survey 2007, Development in an Ageing World. 60th anniversary ed. New York: United Nations, 2007.
MLA-Zitierstil (9. Ausg.)World Economic and Social Survey 2007, Development in an Ageing World. 60th anniversary ed. United Nations, 2007.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.