Gaffney, J. Political parties and the European Union. Taylor & Francis.
Style de citation Chicago (17e éd.)Gaffney, John. Political Parties and the European Union. Abingdon: Taylor & Francis.
Style de citation MLA (8e éd.)Gaffney, John. Political Parties and the European Union. Taylor & Francis.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.