Cita APA (7th ed.)

Duff, A., Pinder, J., & Pryce, R. (1994). Maastricht and beyond: Building the european union. Routledge.

Cita Chicago (17th ed.)

Duff, Andrew, John Pinder, i Roy Pryce. Maastricht and Beyond: Building the European Union. London: Routledge, 1994.

Cita MLA (9th ed.)

Duff, Andrew, et al. Maastricht and Beyond: Building the European Union. Routledge, 1994.