Region
United States
64
Great Britain
4
Europe
3
Soviet Union
3
Germany
2
Germany (West)
2
Social aspects
2
20th Century
1
Africa
1
America
1
Central America
1
China
1
Cuba
1
East Asia
1
Economic conditions
1
Europe, Central
1
Europe, Eastern
1
European Economic Community
1
European Union countries
1
Foreign relations
1
Germany (East)
1
Germany, West
1
Influence
1
Iran
1
Japan
1
Latin America
1
Mexico
1
Netherlands
1
Russia (Federation)
1
Safety measures
1
South Africa
1
South America
1
Ukraine
1
Vocational guidance
1
West (U.S.)
1