Hobolt, S. (2009). Campaign Financing in Danish Referendums. Palgrave Macmillan.
Lua i Stíl Chicago (17ú heag.)Hobolt, S. Campaign Financing in Danish Referendums. Palgrave Macmillan, 2009.
Lua MLA (9ú heag.)Hobolt, S. Campaign Financing in Danish Referendums. Palgrave Macmillan, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.