Geographic Subject
India
106
Indonesia
65
United States
34
Germany
31
Soviet Union
27
Japan
19
Pakistan
16
Sweden
14
Argentina
11
Massachusetts
11
Great Britain
10
Switzerland
10
China
9
Malaysia
9
France
6
Germany (West)
6
Yugoslavia
6
Russia (Federation)
5
Bangladesh
4
Buenos Aires
4
England
4
Europe
4
Hawaii
4
Hungary
4
Malaya
4
Sri Lanka
4
Sulawesi Tenggara
4
Boston
3
Boston (Mass.)
3
Europe, Eastern
3
Himachal Pradesh
3
Netherlands
3
New Hampshire
3
Pennsylvania
3
Russia
3
Sulawesi Selatan
3
Virginia
3
4.480
2
Andhra Pradesh
2
Austria
2
Banda Aceh
2
Bengkulu
2
Bhutan
2
Bulgaria
2
Canada
2
Communist countries
2
Developing countries
2
European Economic Community countries
2
Iraq
2
Java
2
more ...