Bernheim, B. D., Skinner, J., & Weinberg, S. (1997). What accounts for the variation in retirement wealth among U.S. households. National Bureau of Economic Research.
Citazione stile Chigago Style (17a edizione)Bernheim, B. Douglas, Jonathan Skinner, e Steven Weinberg. What Accounts for the Variation in Retirement Wealth Among U.S. Households. Cambridge: National Bureau of Economic Research, 1997.
Citatione MLA (9a ed.)Bernheim, B. Douglas, et al. What Accounts for the Variation in Retirement Wealth Among U.S. Households. National Bureau of Economic Research, 1997.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.