APA (7th ed.) Citation

Barro, J. R., & Chu, M. (2001). HMO penetration, ownership status, and the rise of hospital advertising. National Bureau of Economic Research.

Chicago Style (17th ed.) Citation

Barro, Jason R., and Michael Chu. HMO Penetration, Ownership Status, and the Rise of Hospital Advertising. Cambridge: National Bureau of Economic Research, 2001.

MLA (9th ed.) Citation

Barro, Jason R., and Michael Chu. HMO Penetration, Ownership Status, and the Rise of Hospital Advertising. National Bureau of Economic Research, 2001.