The state of transboundary air pollution : report prepared within the framework of the Convention on Long-range Transboundary Air Pollution.
United Nations.Economic Commission for Europe.
New York : United Nations,
1996.
At head of title: Economic Commission for Europe.
"ECE/EB.AIR/47."
"United Nations publication sales no. E.96.II.E.21"--t.p. verso.
Includes bibliographical references.
Air
Transboundary pollution.
Sulphur
Trees
Forest conservation
Pollution
Air