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.
Chicago Style (17. basım) AtıfBernheim, B. Douglas, Jonathan Skinner, ve Steven Weinberg. What Accounts for the Variation in Retirement Wealth Among U.S. Households. Cambridge: National Bureau of Economic Research, 1997.
MLA (9th ed.) AtıfBernheim, B. Douglas, et al. What Accounts for the Variation in Retirement Wealth Among U.S. Households. National Bureau of Economic Research, 1997.
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