APA aipamena

O'Rourke, K. H., & Williamson, J. G. (1999). The Heckscher-Ohlin model between 1400 and 2000: When it explained factor price convergence when it did not, and why. National Bureau of Economic Research.

Chicago Style aipamena

O'Rourke, Kevin H., and Jeffrey G. Williamson. The Heckscher-Ohlin Model Between 1400 and 2000: When It Explained Factor Price Convergence When It Did Not, and Why. Cambridge: National Bureau of Economic Research, 1999.

MLA aipamena

O'Rourke, Kevin H., and Jeffrey G. Williamson. The Heckscher-Ohlin Model Between 1400 and 2000: When It Explained Factor Price Convergence When It Did Not, and Why. National Bureau of Economic Research, 1999.