APA
United Nations Economic Commission for Europe, . (2002). Sustainable Development in Europe, North America and Central Asia. New York: .
Chicago
United Nations Economic Commission for Europe, . 2002. Sustainable Development in Europe, North America and Central Asia. New York: .
Harvard
United Nations Economic Commission for Europe, . (2002). Sustainable Development in Europe, North America and Central Asia. New York: .
MLA
United Nations Economic Commission for Europe, . Sustainable Development in Europe, North America and Central Asia. New York: . 2002.