Citazione Stile APA (7a Edizione)
(1991). Economic Survey 4/91: Economic Trends in Norway. New Developments in the Perspectives for Natural Gas Trade in Europe. Economic Trends in the Nordic Countries (1. ed.). Central Bureau of Statistics of Norway.
Citazione stile Chigago Style (17a edizione)
Economic Survey 4/91: Economic Trends in Norway. New Developments in the Perspectives for Natural Gas Trade in Europe. Economic Trends in the Nordic Countries. 1. ed. Oslo: Central Bureau of Statistics of Norway, 1991.
Citatione MLA (9a ed.)
Economic Survey 4/91: Economic Trends in Norway. New Developments in the Perspectives for Natural Gas Trade in Europe. Economic Trends in the Nordic Countries. 1. ed. Central Bureau of Statistics of Norway, 1991.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.