Harmsen, R., & Spiering, M. (2004). Euroscepticism: Party politics, national identity and European integration / ed. by Robert Harmsen and Menno spiering. Rodopi.
Lua i Stíl Chicago (17ú heag.)Harmsen, Robert, agus Menno Spiering. Euroscepticism: Party Politics, National Identity and European Integration / Ed. by Robert Harmsen and Menno Spiering. Amsterdam [u.a.]: Rodopi, 2004.
Lua MLA (8ú heag.)Harmsen, Robert, agus Menno Spiering. Euroscepticism: Party Politics, National Identity and European Integration / Ed. by Robert Harmsen and Menno Spiering. Rodopi, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.