Costa, D. L. (2008). The rise of retirement among African Americans: Wealth and social security effects. National Bureau of Economic Research.
Chicago-Zitierstil (17. Ausg.)Costa, Dora L. The Rise of Retirement Among African Americans: Wealth and Social Security Effects. Cambridge, Mass: National Bureau of Economic Research, 2008.
MLA-Zitierstil (9. Ausg.)Costa, Dora L. The Rise of Retirement Among African Americans: Wealth and Social Security Effects. National Bureau of Economic Research, 2008.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.