Subject Region
United States
12
Great Britain
5
Australia
3
China
2
Appalachian Region
1
Cambodia
1
Czech Republic
1
Denmark
1
Developing countries
1
England
1
Europe
1
Hong Kong
1
India
1
Mississippi
1
Scotland
1
South Africa
1
Southern Hemisphere
1
Staveley
1
Staveley (England)
1
Sydney (N.S.W.)
1
Tanzania
1
Zambia
1