Organisation for Economic Co-operation and Development. (2013). Denmark 2013: Combined phase 1 + phase 2, incorporating phase 2 ratings. OECD Publishing.
Lua i Stíl Chicago (17ú heag.)Organisation for Economic Co-operation and Development. Denmark 2013: Combined Phase 1 + Phase 2, Incorporating Phase 2 Ratings. Paris: OECD Publishing, 2013.
Lua MLA (9ú heag.)Organisation for Economic Co-operation and Development. Denmark 2013: Combined Phase 1 + Phase 2, Incorporating Phase 2 Ratings. OECD Publishing, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.