APA (7th ed.) Citation

O'Rourke, K. H., & Williamson, J. G. (2000). When did globalization begin? National Bureau of Economic Research.

Chicago Style (17th ed.) Citation

O'Rourke, Kevin H., and Jeffrey G. Williamson. When Did Globalization Begin? Cambridge, MA: National Bureau of Economic Research, 2000.

MLA (9th ed.) Citation

O'Rourke, Kevin H., and Jeffrey G. Williamson. When Did Globalization Begin? National Bureau of Economic Research, 2000.