APA
Hummels D. L., Schaur Georg & National Bureau Of Economic Research. (2009). Hedging price volatility using fast transport. Cambridge: NBER.
Chicago
Hummels David L, Schaur Georg and National Bureau Of Economic Research. 2009. Hedging price volatility using fast transport. Cambridge: NBER.
Harvard
Hummels D. L., Schaur Georg and National Bureau Of Economic Research. (2009). Hedging price volatility using fast transport. Cambridge: NBER.
MLA
Hummels David L, Schaur Georg and National Bureau Of Economic Research. Hedging price volatility using fast transport. Cambridge: NBER. 2009.