Soren, D. (1992). Experience of The Nordic Countries in Tackling The Environmental Impacts of Energy Supply and Use. World Energy Council.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Soren, Dalager. Experience of The Nordic Countries in Tackling The Environmental Impacts of Energy Supply and Use. London: World Energy Council, 1992.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)Soren, Dalager. Experience of The Nordic Countries in Tackling The Environmental Impacts of Energy Supply and Use. World Energy Council, 1992.