Geography
United States
622 results
Washington (D.C.)
67 results
Soviet Union
53 results
Europe
38 results
Asia
17 results
Developing countries
14 results
Great Britain
11 results
Japan
11 results
Pacific Area
10 results
Canada
9 results
China
8 results
France
8 results
Latin America
8 results
Middle East
8 results
Vietnam
8 results
Mexico
7 results
North America
5 results
Spain
5 results
America
4 results
Asie
4 results
Central America
4 results
Cuba
4 results
Germany
4 results
Iran
4 results
Outer space
4 results
États-Unis
4 results
Hungary
3 results
Pacifique, Région du
3 results
Pennsylvania
3 results
Potomac River
3 results
Southern States
3 results
Texas
3 results
USA
3 results
Yugoslavia
3 results
Afghanistan
2 results
Africa
2 results
Alaska
2 results
Austria
2 results
Belgium
2 results
Berlin (Germany)
2 results
England
2 results
Former Soviet republics
2 results
Germany (West)
2 results
Guam
2 results
Illinois
2 results
Indonesia
2 results
Israel
2 results
Italy
2 results
London
2 results
Netherlands
2 results
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