Geography
United States
52 results
China
35 results
Developing countries
27 results
Mexico
19 results
India
18 results
Europe
14 results
Great Britain
13 results
Japan
12 results
Latin America
11 results
Africa
10 results
Asia
10 results
Germany
8 results
Southern States
8 results
Soviet Union
8 results
East Asia
7 results
England
7 results
France
7 results
Argentina
4 results
Brazil
4 results
Korea (South)
4 results
Mexican-American Border Region
4 results
Pennsylvania
4 results
Québec (Province)
4 results
Southeast Asia
4 results
Taiwan
4 results
West Virginia
4 results
Egypt
3 results
Italy
3 results
Mexico City
3 results
Mexiko
3 results
Nuevo León (Mexico : State)
3 results
Nuevo León (State)
3 results
Scotland
3 results
Texas
3 results
Thailand
3 results
Vietnam
3 results
Africa, Sub-Saharan
2 results
Alabama
2 results
America
2 results
Athens
2 results
Athens (Ga.)
2 results
Berlin
2 results
Cantel (Guatemala)
2 results
Chicago
2 results
Chile
2 results
Connecticut River Valley
2 results
Dubuque
2 results
Dubuque (Iowa)
2 results
Europe, Eastern
2 results
Georgia
2 results
more…