Détail du congrès:
Congrès: Intergovernmental conference of experts on the scientific basis for rational use and conservation of the resources of the biosphere (1968/09/04-13; Paris, FRA) (1968/09/04-13) |
Congrès: Intergovernmental conference of experts on the scientific basis for rational use and conservation of the resources of the biosphere (1968/09/04-13; Paris, FRA) (1968/09/04-13) |