Naciones Unidas. Comisión Económica para Europa. (2007). Environmental indicators and indicator-based assessment reports: Eastern Europe, Caucasus and Central Asia. United Nations.
Chicago Style (17th ed.) CitationNaciones Unidas. Comisión Económica para Europa. Environmental Indicators and Indicator-based Assessment Reports: Eastern Europe, Caucasus and Central Asia. New York: United Nations, 2007.
MLA (9th ed.) CitationNaciones Unidas. Comisión Económica para Europa. Environmental Indicators and Indicator-based Assessment Reports: Eastern Europe, Caucasus and Central Asia. United Nations, 2007.