Feldstein, M., & Altman, D. (1998). Unemployment insurance savings insurance. National Bureau of Economic Research.
Cita Chicago (17th ed.)Feldstein, Martin, i Daniel Altman. Unemployment Insurance Savings Insurance. Cambridge, Mass: National Bureau of Economic Research, 1998.
Cita MLA (9th ed.)Feldstein, Martin, i Daniel Altman. Unemployment Insurance Savings Insurance. National Bureau of Economic Research, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.