Geography
Developing countries
50 results
United States
28 results
Soviet Union
23 results
Latin America
21 results
Africa
13 results
China
12 results
Mexico
12 results
Israel
9 results
Iran
8 results
Japan
8 results
Europe
7 results
Brazil
6 results
Europe, Eastern
6 results
European Economic Community countries
6 results
Ghana
6 results
India
6 results
Arab countries
5 results
Asia
5 results
Egypt
5 results
Nigeria
5 results
Thailand
5 results
Venezuela
5 results
Canada
4 results
Central America
4 results
Chile
4 results
Jamaica
4 results
Pakistan
4 results
Peru
4 results
Poland
4 results
Tunisia
4 results
Vietnam
4 results
Bolivia
3 results
Communist countries
3 results
Germany (West)
3 results
Great Britain
3 results
Middle East
3 results
Spain
3 results
Turkey
3 results
Africa, North
2 results
Argentina
2 results
Colombia
2 results
Cuba
2 results
Czechoslovakia
2 results
Germany (East)
2 results
Hungary
2 results
Ireland
2 results
Jordan
2 results
Korea
2 results
Liberia
2 results
Philippines
2 results
more…