Gruber, J., & Lettau, M. (2000). How elastic is the firm's demand for health insurancen. National Bureau of Economic Research.
芝加哥风格引文Gruber, Jonathan, 与 Michael Lettau. How Elastic Is the Firm's Demand for Health Insurancen. Cambridge: National Bureau of Economic Research, 2000.
MLA引文Gruber, Jonathan, 与 Michael Lettau. How Elastic Is the Firm's Demand for Health Insurancen. National Bureau of Economic Research, 2000.
警告：这些引文格式不一定是100％准确.