Geographic Subject
Soviet Union
14
Indonesia
11
India
9
Russia (Federation)
6
Asia, Southeastern
5
Canada
4
United States
3
Bangladesh
2
Guinea-Bissau
2
Siberia
2
Sri Lanka
2
Volga River Region
2
Alaska
1
Asia
1
Bengal, Bay of
1
Canada (Est)
1
Caucasus
1
Developing countries
1
European Economic Community countries
1
Former Soviet republics
1
Germany
1
Germany (East)
1
Kiev (Guberniya)
1
Kiev (Ukraine : Guberniya)
1
Latin America
1
Meghalaya
1
Mekong River Region
1
Moldova
1
Provinces maritimes
1
Punjab (State)
1
Québec (Province)
1
Rome
1
Russia, Northern
1
Siberia, Eastern
1
Thailand
1
Ukraine
1
Volga River Watershed
1
Yugoslavia
1