אזור
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Alps
1
Altaĭskiĭ kraĭ
1
Anai River
1
Angara River (Russia)
1
Angara River Watershed
1
Arab countries
1
Aral Sea (Uzbekistan and Kazakhstan)
1
Argentina
1
Asia, Southeastern
1
Australia
1
Azov, Sea of (Ukraine and Russia)
1
Badulla (District)
1
Baikal Lake Region
1
Bengkulu (Propinsi)
1
Bengkulu (Province)
1
Betūl (District)
1
Bihar
1
Bintan Island
1
Black Sea Coast
1
Brazil, Northeast
1
Cabora Bassa Dam (Mozambique)
1
Caspian Sea
1
Caucasus
1
Caucasus Northern
1
Caucasus, Northern
1
Cauvery River
1
Chitinska︠i︡a oblastʹ
1
Cimandiri River
1
Cimanuk River Area
1
Citanduy River Region
1
Citanduy River region
1
Citanduy river basin
1
Colorado River Valley (Colo.-Mexico)
1
Czechoslovakia
1
Delaware River (N.Y.-Del. and N.J.)
1
Delaware River Valley (N.Y.-Del. and N.J.)
1
Developing countries
1
Ethiopia
1
Eulach River (Switzerland)
1
Europe
1
Former Soviet Republics
1
Gaza Strip
1
Germany
1
Godāvari River Watershed
1
Gorgol
1
Gujrānwāla District
1
Himalaya Mountains
1
Himalaya Mountains Region
1
India, Northeastern
1
Indus River Watershed
1
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