Cita APA

Gracia, O., & Zuleta, O. (2009). The free trade agreement betwen Colombia and USA: What can happen to Colombia?

Citación estilo Chicago

Gracia, Orlando, y Orlando Zuleta. The Free Trade Agreement Betwen Colombia and USA: What Can Happen to Colombia? 2009.

Cita MLA

Gracia, Orlando, y Orlando Zuleta. The Free Trade Agreement Betwen Colombia and USA: What Can Happen to Colombia? 2009.