Smetters, K. A. (2003). Is the Social Security trust fund worth anything? National Bureau of Economic Research.
Chicago-Zitierstil (17. Ausg.)Smetters, Kent A. Is the Social Security Trust Fund Worth Anything? Cambridge, Mass: National Bureau of Economic Research, 2003.
MLA-Zitierstil (9. Ausg.)Smetters, Kent A. Is the Social Security Trust Fund Worth Anything? National Bureau of Economic Research, 2003.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.