APA (7th ed.) Citation

Wessels, W., Mittag, J., & Maurer, A. (2003). Fifteen into one?: The European Union and its member states. Manchester University Press.

Chicago Style (17th ed.) Citation

Wessels, Wolfgang, Jürgen Mittag, and Andreas Maurer. Fifteen into One?: The European Union and Its Member States. Manchester University Press, 2003.

MLA (9th ed.) Citation

Wessels, Wolfgang, et al. Fifteen into One?: The European Union and Its Member States. Manchester University Press, 2003.