APA (7th ed.) Citation

(1991). Assessment of long-range transboundary air pollution: Report prepared within the framework of the Convention on Long-range Transboundary Air Pollution. United Nations.

Chicago Style (17th ed.) Citation

Assessment of Long-range Transboundary Air Pollution: Report Prepared Within the Framework of the Convention on Long-range Transboundary Air Pollution. New York: United Nations, 1991.

MLA (9th ed.) Citation

Assessment of Long-range Transboundary Air Pollution: Report Prepared Within the Framework of the Convention on Long-range Transboundary Air Pollution. United Nations, 1991.