APA (7th ed.) Citation

Hummels, D., & Lugovskyy, V. (2005). Trade in ideal varieties: Theory and evidence. National Bureau of Economic Research.

Chicago Style (17th ed.) Citation

Hummels, David, and Volodymyr Lugovskyy. Trade in Ideal Varieties: Theory and Evidence. Cambridge, Mass: National Bureau of Economic Research, 2005.

MLA (9th ed.) Citation

Hummels, David, and Volodymyr Lugovskyy. Trade in Ideal Varieties: Theory and Evidence. National Bureau of Economic Research, 2005.