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Assemblée générale de Helsinki : 25/7 - 6/8 1960 : commission d'érosion continentale, comité des précipitations, comité de l'évaporation et de l'évapo-transpiration , comité des instruments, comité de standardisation, comité de substances dissoutes / Association Internationale d'Hydrologie Scientifique = = General assembly of Helsinki : 25/7 - 6/8 1960 : commission of land erosion, committee of precipitation, committee of evaporation and evapo-transpiration, committee of instruments, committee of standardization, committee of dissolved matters / International Association of Scientific Hydrology |
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