Cita APA (7a ed.)

Keeble, D., Offord, J., & Walker, S. (1988). Peripheral regions in a community of twelve member states. Office for Official Publications of the European Communities.

Cita Chicago Style (17a ed.)

Keeble, David, John Offord, y Sheila Walker. Peripheral Regions in a Community of Twelve Member States. Luxembourg: Office for Official Publications of the European Communities, 1988.

Cita MLA (9a ed.)

Keeble, David, et al. Peripheral Regions in a Community of Twelve Member States. Office for Official Publications of the European Communities, 1988.