APA (7th ed.) Citation

Feldstein, M. S. (2003). Why is productivity growing faster? National Bureau of Economic Research.

Chicago Style (17th ed.) Citation

Feldstein, Martin S. Why Is Productivity Growing Faster? Cambridge, Mass: National Bureau of Economic Research, 2003.

MLA (9th ed.) Citation

Feldstein, Martin S. Why Is Productivity Growing Faster? National Bureau of Economic Research, 2003.

Warning: These citations may not always be 100% accurate.