APA
Allcott H., National Bureau of Economic Research & Rafkin C. (2020). Optimal regulation of e-cigarettes. Cambridge: NBER.
Chicago
Allcott Hunt, National Bureau of Economic Research and Rafkin Charlie. 2020. Optimal regulation of e-cigarettes. Cambridge: NBER.
Harvard
Allcott H., National Bureau of Economic Research and Rafkin C. (2020). Optimal regulation of e-cigarettes. Cambridge: NBER.
MLA
Allcott Hunt, National Bureau of Economic Research and Rafkin Charlie. Optimal regulation of e-cigarettes. Cambridge: NBER. 2020.