Levitt, S. D., & Porter, J. (1999). Estimating the effect of alcohol on driver risk using only fatal accident statistics. National Bureau of Economic Research.
Čikaški stil citiranja (17. izdanje)Levitt, Steven D., i Jack Porter. Estimating the Effect of Alcohol on Driver Risk Using Only Fatal Accident Statistics. Cambridge: National Bureau of Economic Research, 1999.
MLA način citiranja (9. izdanje)Levitt, Steven D., i Jack Porter. Estimating the Effect of Alcohol on Driver Risk Using Only Fatal Accident Statistics. National Bureau of Economic Research, 1999.
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