APA (7th ed.) Citation

Falk, A., & Fischbacher, U. (2001). A theory of reciprocity. CEPR.

Chicago Style (17th ed.) Citation

Falk, Armin, and Urs Fischbacher. A Theory of Reciprocity. London: CEPR, 2001.

MLA (9th ed.) Citation

Falk, Armin, and Urs Fischbacher. A Theory of Reciprocity. CEPR, 2001.

Warning: These citations may not always be 100% accurate.