Organisation for Economic Co-operation and Development. (2013). Denmark 2013: Combined phase 1 + phase 2, incorporating phase 2 ratings. OECD Publishing.
Citazione stile Chigago Style (17a edizione)Organisation for Economic Co-operation and Development. Denmark 2013: Combined Phase 1 + Phase 2, Incorporating Phase 2 Ratings. Paris: OECD Publishing, 2013.
Citatione MLA (9a ed.)Organisation for Economic Co-operation and Development. Denmark 2013: Combined Phase 1 + Phase 2, Incorporating Phase 2 Ratings. OECD Publishing, 2013.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.