Duff, A., Pinder, J., & Pryce, R. (1994). Maastricht and beyond: Building the european union. Routledge.
Chicago Style (17. basım) AtıfDuff, Andrew, John Pinder, ve Roy Pryce. Maastricht and Beyond: Building the European Union. London: Routledge, 1994.
MLA (9th ed.) AtıfDuff, Andrew, et al. Maastricht and Beyond: Building the European Union. Routledge, 1994.
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