Détail du congrès:
Congrès: IBP-UNESCO Symposium on Productivity Problems of Freshwaters (1970/05/06-12; Kazimierz Dolny, POL) (1970/05/06-12) |
Congrès: IBP-UNESCO Symposium on Productivity Problems of Freshwaters (1970/05/06-12; Kazimierz Dolny, POL) (1970/05/06-12) |