Geography
United States
102 results
OECD countries
6 results
Texas
5 results
Alberta
4 results
Northwest, Pacific
3 results
California
2 results
Canada
2 results
Great Britain
2 results
Korea (South)
2 results
Australia
1 results
Austria
1 results
Bahia (State)
1 results
Belgium
1 results
Brazil
1 results
Czech Republic
1 results
Czechoslovakia
1 results
Denmark
1 results
Developing countries
1 results
Europe
1 results
Finland
1 results
France
1 results
Germany
1 results
Germany (West)
1 results
Greece
1 results
Houston
1 results
Hungary
1 results
Ireland
1 results
Italy
1 results
Japan
1 results
Kansas
1 results
Luxembourg
1 results
Netherlands
1 results
New Zealand
1 results
North America
1 results
Norway
1 results
Oregon
1 results
Pacific Northwest
1 results
Portugal
1 results
Scandinavia
1 results
Slovakia
1 results
Slovenia
1 results
South Africa
1 results
Soviet Union
1 results
Spain
1 results
Sweden
1 results
Switzerland
1 results
Turkey
1 results