APA (7th ed.) Citation

Antràs, P., & Helpman, E. (2006). Contractual frictions and global sourcing. National Bureau of Economic Research.

Chicago Style (17th ed.) Citation

Antràs, Pol, and Elhanan Helpman. Contractual Frictions and Global Sourcing. Cambridge, Mass: National Bureau of Economic Research, 2006.

MLA (9th ed.) Citation

Antràs, Pol, and Elhanan Helpman. Contractual Frictions and Global Sourcing. National Bureau of Economic Research, 2006.