Le deperissement des forets en Europe attribue aux polluants atmospheriques (donnees jusqu'en 1987)
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| Format: | Texto biblioteca |
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New York (USA) United Nations
1990
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| Subjects: | CONIFEROUS FORESTS, AIR POLLUTION, MONITORING, EVALUATION, DAMAGE, FORET RESINEUSE, POLLUTION ATMOSPHERIQUE, BOSQUE DE CONIFERAS, POLUCION DEL AIRE, SURVEILLANCE, DEGAT, VIGILANCIA, EVALUACION, DANOS, |
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