Conclusions and draft recommendations of the Workshops on Critical Levels for Forests, Crops and Materials and on Critical Loads for Sulphur and Nitrogen.
1988
Detalles de los registros
Signatura[E/ECE/]EB.AIR/R.30
TítuloConclusions and draft recommendations of the Workshops on Critical Levels for Forests, Crops and Materials and on Critical Loads for Sulphur and Nitrogen.
Nombre de la Runión
FechaGeneva : UN, 20 June 1988.
Descripción
26 p. : graph, tables