APA
Blonigen B. A. a. W., National Bureau Of Economic Research, . (2006). New measures of port efficiency using international trade data (NBERWP12052). Cambridge, MA: NBER.
Chicago
Blonigen Bruce A and Wilson, National Bureau Of Economic Research, . 2006. New measures of port efficiency using international trade data (NBERWP12052). Cambridge, MA: NBER.
Harvard
Blonigen B. A. a. W., National Bureau Of Economic Research, . (2006). New measures of port efficiency using international trade data (NBERWP12052). Cambridge, MA: NBER.
MLA
Blonigen Bruce A and Wilson, National Bureau Of Economic Research, . New measures of port efficiency using international trade data (NBERWP12052). Cambridge, MA: NBER. 2006.
TextSeries: Publication details: Cambridge, MA NBER 2006Description: 30pISBN: 
Working Papers (Print)
