Region
7.150
1
Afghanistan
2
Africa
2
Africa, North
1
Africa, Southern
1
Alabama
2
Alaska
2
Amchitka Island
2
Amchitka Island (Alaska)
2
America
1
Anti-communist movements
1
Arizona
1
Asia
2
Australia
2
Balkan Peninsula
2
Bolivia
1
Boston (Mass.)
1
Brazil
2
Brooklyn (New York, N.Y.)
1
Bulgaria
1
Bullitt County (Ky.)
2
California
5
Canada
3
Caribbean Area
2
Central America
2
Chicago
3
Chicago (Ill.)
2
Chile
2
China
6
Communist countries
2
Comunidad de Estados Independientes
1
Connecticut
1
Cuba
7
Cyprus
1
Czechoslovakia
6
Developing countries
9
Dunaújváros
1
Dunaújváros (Hungary)
1
East Asia
2
Eastern Europe
1
Europa Oriental
1
Europe
11
Europe, Central
5
Europe, Eastern
47
Europe, Western
2
Florida
2
Former Soviet republics
1
France
4
Förenta staterna
1
Germany
3
more ...