United Nations. Economic Commission for Europe, Sliggers, J., & Kakebeeke, W. (2004). Clearing the air: 25 years of the Convention on Long-range Transboundary Air Pollution. United Nations.
Citace podle Chicago (17th ed.)United Nations. Economic Commission for Europe, Johan Sliggers, a Willem Kakebeeke. Clearing the Air: 25 Years of the Convention on Long-range Transboundary Air Pollution. New York: United Nations, 2004.
Citace podle MLA (9th ed.)United Nations. Economic Commission for Europe, et al. Clearing the Air: 25 Years of the Convention on Long-range Transboundary Air Pollution. United Nations, 2004.
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