APA (7th ed.) Citation

Anderson, J. E., & van Wincoop, E. (2000). Gravity with gravitas: A solution to the border puzzle. National Bureau of Economic Research.

Chicago Style (17th ed.) Citation

Anderson, James E., and Eric van Wincoop. Gravity with Gravitas: A Solution to the Border Puzzle. Cambridge: National Bureau of Economic Research, 2000.

MLA (9th ed.) Citation

Anderson, James E., and Eric van Wincoop. Gravity with Gravitas: A Solution to the Border Puzzle. National Bureau of Economic Research, 2000.