Cita APA (7a ed.)

Barfield, C. E. (2001). Free trade, sovereignty, democracy: The future of the World Trade Organization. AEI.

Cita Chicago Style (17a ed.)

Barfield, Claude E. Free Trade, Sovereignty, Democracy: The Future of the World Trade Organization. Washington, D.C.: AEI, 2001.

Cita MLA (9a ed.)

Barfield, Claude E. Free Trade, Sovereignty, Democracy: The Future of the World Trade Organization. AEI, 2001.