Geographic Subject
Asia, Southeastern
119
Germany
91
Indonesia
14
Russia (Federation)
9
United States
9
Russia
8
Soviet Union
8
Morocco
6
India
5
Latin America
5
Spain
5
Argentina
4
Europe
4
European Economic Community countries
4
Japan
4
Australia
3
Peru
3
Africa
2
Alaska
2
Antarctica
2
Asia
2
Austria
2
Brazil
2
Canada
2
Chicago (Ill.)
2
England
2
Israel
2
London
2
Moscow
2
Switzerland
2
Ukraine
2
Africa, North
1
Arctic regions
1
Argentine
1
Arizona
1
Bering Sea
1
Caribbean Area
1
Cuba
1
Dakota Territory
1
Denmark
1
Developing countries
1
Emden (Lower Saxony)
1
Essex County (Mass.)
1
Estonia
1
France
1
Frankenthal (Rhineland-Palatinate)
1
Germany, Southern
1
Granada (Kingdom)
1
Greece
1
Guatemala
1
more ...