Convention on Long-Range Transboundary Air Pollution, International Co-operative Programme on Assessment and Monitoring of Air Pollution Effects on Forests, European Union Scheme on the Protection of Forests Against Atmospheric Pollution, & Muller-Edzards, C. (1997). Ten years of monitoring forest condition in Europe: Studies on temporal development, spatial distribution and impacts of natural and anthropogenic stress factors : overview report. United Nations Economic Commission for Europe; European Commission.
Παραπομπή σε μορφή Chicago (17η εκδ.)Convention on Long-Range Transboundary Air Pollution, International Co-operative Programme on Assessment and Monitoring of Air Pollution Effects on Forests, European Union Scheme on the Protection of Forests Against Atmospheric Pollution, και Christian Muller-Edzards. Ten Years of Monitoring Forest Condition in Europe: Studies on Temporal Development, Spatial Distribution and Impacts of Natural and Anthropogenic Stress Factors : Overview Report. Brussels, Geneva: United Nations Economic Commission for Europe; European Commission, 1997.
Παραπομπή σε μορφή MLA (9th εκδ.)Convention on Long-Range Transboundary Air Pollution, et al. Ten Years of Monitoring Forest Condition in Europe: Studies on Temporal Development, Spatial Distribution and Impacts of Natural and Anthropogenic Stress Factors : Overview Report. United Nations Economic Commission for Europe; European Commission, 1997.