Geography
United States
735 results
Soviet Union
41 results
China
25 results
Europe
14 results
Japan
12 results
Africa
6 results
Russia (Federation)
6 results
European Economic Community countries
5 results
Developing countries
4 results
Europe, Eastern
4 results
Mexico
4 results
Caribbean Area
3 results
Central America
3 results
New York (State)
3 results
Africa, Sub-Saharan
2 results
Argentina
2 results
Asia
2 results
East Asia
2 results
Germany (West)
2 results
Illinois
2 results
Latin America
2 results
New York
2 results
Ohio
2 results
Sweden
2 results
Taiwan
2 results
Texas
2 results
Wisconsin
2 results
Afghanistan
1 results
America
1 results
California
1 results
Chicago
1 results
Chicago (Ill.)
1 results
Cleveland
1 results
Colombia
1 results
Cuba
1 results
Europe, Central
1 results
Former Soviet republics
1 results
France
1 results
Great Britain
1 results
Hawaii
1 results
Houston
1 results
Houston (Tex.)
1 results
Indiana
1 results
Islands of the Pacific
1 results
Israel
1 results
Korea (North)
1 results
Korea (South)
1 results
Mississippi
1 results
Mississippi River Delta (La.)
1 results
Missouri
1 results
more…