APA (7th ed.) Citation

Cutler, D. M., Glaeser, E. L., & Shapiro, J. M. (2003). Why have Americans become more obese? National Bureau of Economic Research.

Chicago Style (17th ed.) Citation

Cutler, David M., Edward L. Glaeser, and Jesse M. Shapiro. Why Have Americans Become More Obese? Cambridge, Mass: National Bureau of Economic Research, 2003.

MLA (9th ed.) Citation

Cutler, David M., et al. Why Have Americans Become More Obese? National Bureau of Economic Research, 2003.