Feldstein, M. S. (1980). Social security benefits and the accumulation of preretirement wealth. National Bureau of Economic Research.
Chicago-Zitierstil (17. Ausg.)Feldstein, Martin S. Social Security Benefits and the Accumulation of Preretirement Wealth. Cambridge, Mass: National Bureau of Economic Research, 1980.
MLA-Zitierstil (9. Ausg.)Feldstein, Martin S. Social Security Benefits and the Accumulation of Preretirement Wealth. National Bureau of Economic Research, 1980.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.