Cita APA (7a ed.)

Klein, M., & Harford, T. (2005). The market for aid. International Finance Corporation.

Cita Chicago Style (17a ed.)

Klein, Michael, y Tim Harford. The Market for Aid. Washington, D.C.: International Finance Corporation, 2005.

Cita MLA (8a ed.)

Klein, Michael, y Tim Harford. The Market for Aid. International Finance Corporation, 2005.