Freund, C. (2003). Reciprocity in free trade agreements. Trade.
Cita Chicago (17th ed.)Freund, Caroline. Reciprocity in Free Trade Agreements. Washington, D.C: Trade, 2003.
Cita MLA (9th ed.)Freund, Caroline. Reciprocity in Free Trade Agreements. Trade, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.