Cita APA (7a ed.)

Portela, C. (2010). European Union sanctions and foreign policy: When and why do they work? Routledge.

Cita Chicago Style (17a ed.)

Portela, Clara. European Union Sanctions and Foreign Policy: When and Why Do They Work? Milton Park, Abingdon, Oxon [England] ; New York: Routledge, 2010.

Cita MLA (9a ed.)

Portela, Clara. European Union Sanctions and Foreign Policy: When and Why Do They Work? Routledge, 2010.