Gaffney, J. (1996). Political parties and the European Union. London: Routledge.
Lua i Stíl Chicago (17ú heag.)Gaffney, John. Political Parties and the European Union. London: Routledge, 1996.
Lua MLA (8ú heag.)Gaffney, John. Political Parties and the European Union. London: Routledge, 1996.
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