APA
Collins W. J., O Rourke Kevein & National Bureau Of Economic Research Inc. (1997). Were trade and factor mobility substitutes in history?. Cambridge, MA: NBER.
Chicago
Collins William J, O Rourke Kevein and National Bureau Of Economic Research Inc. 1997. Were trade and factor mobility substitutes in history?. Cambridge, MA: NBER.
Harvard
Collins W. J., O Rourke Kevein and National Bureau Of Economic Research Inc. (1997). Were trade and factor mobility substitutes in history?. Cambridge, MA: NBER.
MLA
Collins William J, O Rourke Kevein and National Bureau Of Economic Research Inc. Were trade and factor mobility substitutes in history?. Cambridge, MA: NBER. 1997.
TextSeries: Working Paper SeriesPublication details: Cambridge, MA NBER 1997Description: 25pISBN: 
Working Papers (Print)
