Wessels, W., Mittag, J., & Maurer, A. (2003). Fifteen into one?: The European Union and its member states. Manchester University Press.
Chicago Style (17. basım) AtıfWessels, Wolfgang, Jürgen Mittag, ve Andreas Maurer. Fifteen into One?: The European Union and Its Member States. Manchester University Press, 2003.
MLA (9th ed.) AtıfWessels, Wolfgang, et al. Fifteen into One?: The European Union and Its Member States. Manchester University Press, 2003.
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