1930
The 11th Hydrological Congress, Rhodes


[The 11th Hydrological Congress, Rhodes, type I]


[The 11th Hydrological Congress, Rhodes, type I1]


[The 11th Hydrological Congress, Rhodes, type I2]


[The 11th Hydrological Congress, Rhodes, type I3]


[The 11th Hydrological Congress, Rhodes, type I4]


[The 11th Hydrological Congress, Rhodes, type I5]


[The 11th Hydrological Congress, Rhodes, type I6]


[The 11th Hydrological Congress, Rhodes, type I7]


[The 11th Hydrological Congress, Rhodes, type I8]

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