APA
Li S., Timmins Christopher, Haefen Roger Von & National Bureau Of Economic Research. (2008). How Do Gasoline Prices Affect Fleet Fuel Economy?. Cambridge: NBER.
Chicago
Li Shanjun, Timmins Christopher, Haefen Roger Von and National Bureau Of Economic Research. 2008. How Do Gasoline Prices Affect Fleet Fuel Economy?. Cambridge: NBER.
Harvard
Li S., Timmins Christopher, Haefen Roger Von and National Bureau Of Economic Research. (2008). How Do Gasoline Prices Affect Fleet Fuel Economy?. Cambridge: NBER.
MLA
Li Shanjun, Timmins Christopher, Haefen Roger Von and National Bureau Of Economic Research. How Do Gasoline Prices Affect Fleet Fuel Economy?. Cambridge: NBER. 2008.