Davis, D. (1996). The Heckscher-Ohlin-Vanek model of trade: Why does it fail? when does it workn. National Bureau of Economics.
Chicago Style aipamenaDavis, D.R. The Heckscher-Ohlin-Vanek Model of Trade: Why Does It Fail? When Does It Workn. Cambridge: National Bureau of Economics, 1996.
MLA aipamenaDavis, D.R. The Heckscher-Ohlin-Vanek Model of Trade: Why Does It Fail? When Does It Workn. National Bureau of Economics, 1996.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.