Cita APA (7a ed.)

Grabbe, H., & Hughes, K. (1998). Enlarging the EU eastwards. Royal Institute of International Affairs.

Cita Chicago Style (17a ed.)

Grabbe, Heather, y Kirsty Hughes. Enlarging the EU Eastwards. London: Royal Institute of International Affairs, 1998.

Cita MLA (9a ed.)

Grabbe, Heather, y Kirsty Hughes. Enlarging the EU Eastwards. Royal Institute of International Affairs, 1998.