Gebied
Africa, West
1
Arizona
1
Austria
1
Baltimore
1
California
1
Central America
1
Chicago (Ill.)
1
China
1
England
1
Europe
2
Germany
7
Great Britain
7
Kentucky
1
Maryland
1
Netherlands
1
New York
1
New York (State)
1
Russia (Federation)
1
Shanghai
1
Shanghai (China)
1
South America
1
South Carolina
1
Soviet Union
1
United States
11
Ural Mountains Region
1