APA
Liu Y., National Bureau of Economic Research & Jin G. Z. (2013). Employer contribution and premium growth in health insurance. Cambridge: NBER.
Chicago
Liu Yiyan, National Bureau of Economic Research and Jin Ginger Zhe. 2013. Employer contribution and premium growth in health insurance. Cambridge: NBER.
Harvard
Liu Y., National Bureau of Economic Research and Jin G. Z. (2013). Employer contribution and premium growth in health insurance. Cambridge: NBER.
MLA
Liu Yiyan, National Bureau of Economic Research and Jin Ginger Zhe. Employer contribution and premium growth in health insurance. Cambridge: NBER. 2013.