APA (7th ed.) Citation

Skinner, J. (2007). Are you sure you're saving enough for retirement? National Bureau of Economic Research.

Chicago Style (17th ed.) Citation

Skinner, Jonathan. Are You Sure You're Saving Enough for Retirement? Cambridge, Mass: National Bureau of Economic Research, 2007.

MLA (9th ed.) Citation

Skinner, Jonathan. Are You Sure You're Saving Enough for Retirement? National Bureau of Economic Research, 2007.