Geographic Subject
Alemania (República Federal, 1949 1990)
1
Bangladesh
1
China
1
Developing countries
3
Europe
1
Europe, Southern
1
European Economic Community countries
3
Germany
4
Germany (West)
7
Great Britain
1
India
9
Indonesia
3
Italian Somaliland
1
Italy
1
Kazakhstan
1
Malaysia
3
New Zealand
3
Nigeria
1
Pakistan
1
Soviet Union
2
Sri Lanka
5
Sweden
2
Switzerland
2
Trinidad and Tobago
1
Turkey
1
United States
2