Cita APA (7a ed.)

Keukeleire, S., & Delreux, T. (2014). The foreign policy of the European Union (2nd ed.). Palgrave Macmillan.

Cita Chicago Style (17a ed.)

Keukeleire, Stephan, y Tom Delreux. The Foreign Policy of the European Union. 2nd ed. Houndmills [etc.]: Palgrave Macmillan, 2014.

Cita MLA (9a ed.)

Keukeleire, Stephan, y Tom Delreux. The Foreign Policy of the European Union. 2nd ed. Palgrave Macmillan, 2014.