Organisation for Economic Co-operation and Development. (1991). Oecd economic surveys: Norway. OECD Publishing.
Chicago-referens (17:e uppl.)Organisation for Economic Co-operation and Development. Oecd Economic Surveys: Norway. Paris, France: OECD Publishing, 1991.
MLA-referens (9:e uppl.)Organisation for Economic Co-operation and Development. Oecd Economic Surveys: Norway. OECD Publishing, 1991.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.