APA (7th ed.) Citation

Fehr, E., Hart, O. D., & Zehnder, C. (2011). How do informal agreements and renegotiation shape contractual reference points? National Bureau of Economic Research.

Chicago Style (17th ed.) Citation

Fehr, Ernst, Oliver D. Hart, and Christian Zehnder. How Do Informal Agreements and Renegotiation Shape Contractual Reference Points? Cambridge, Mass: National Bureau of Economic Research, 2011.

MLA (9th ed.) Citation

Fehr, Ernst, et al. How Do Informal Agreements and Renegotiation Shape Contractual Reference Points? National Bureau of Economic Research, 2011.