Style de citation APA (7e éd.)

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

Style de citation Chicago (17e éd.)

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

Style de citation MLA (8e éd.)

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