Cita APA (7th ed.)

Gruber, J., & Lettau, M. (2000). How elastic is the firm's demand for health insurancen. National Bureau of Economic Research.

Cita Chicago (17th ed.)

Gruber, Jonathan, i Michael Lettau. How Elastic Is the Firm's Demand for Health Insurancen. Cambridge: National Bureau of Economic Research, 2000.

Cita MLA (9th ed.)

Gruber, Jonathan, i Michael Lettau. How Elastic Is the Firm's Demand for Health Insurancen. National Bureau of Economic Research, 2000.