APA (7th ed.) Citation

(1993). The state of transboundary air pollution: Report prepared within the framework of the Convention on Long Range Transboundary Air Pollution (1992 update.). United Nations.

Chicago Style (17th ed.) Citation

The State of Transboundary Air Pollution: Report Prepared Within the Framework of the Convention on Long Range Transboundary Air Pollution. 1992 update. New York: United Nations, 1993.

MLA (9th ed.) Citation

The State of Transboundary Air Pollution: Report Prepared Within the Framework of the Convention on Long Range Transboundary Air Pollution. 1992 update. United Nations, 1993.