Gustman, A. L., & Steinmeier, T. L. (2001). Retirement and wealth. National Bureau of Economic Research.
Cita Chicago (17th ed.)Gustman, Alan L., i Thomas L. Steinmeier. Retirement and Wealth. Cambridge: National Bureau of Economic Research, 2001.
Cita MLA (9th ed.)Gustman, Alan L., i Thomas L. Steinmeier. Retirement and Wealth. National Bureau of Economic Research, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.