Impacts of long-range transboundary air pollution : report prepared within the framework of the Convention on Long-Range Transboundary Air Pollution / Economic Commission for Europe. United Nations. Economic Commission for Europe. Air Pollution. Transboundary pollution. Forest declines Europe. TD883.1 .I46 1992 363.7 UNI "ECE/EB.AIR/31." "United Nations publication sales no. E.92.II.E.24"--T.p. verso. Includes bibliographical references (p. 82-86). New York : United Nations, 1992. 1992. 1992 Text v, 86 p. : eng Air pollution studies, 1014-4625 ; 8 Europe.