Geographic Subject
East Asia
331
Russia (Federation)
39
Asia, Southeastern
34
United States
29
China
23
Japan
17
Asia
15
Russian Far East
14
Soviet Union
11
Great Britain
10
Pacific Area
10
Russian Far East (Russia)
9
India
8
Southeast Asia
8
Asia, Central
7
Middle East
7
South Asia
7
Germany
6
Siberia
6
Australasia
5
Earth
4
Netherlands
4
Oceania
4
Siberia (Russia)
4
Siberia, Eastern
4
Malaysia
3
Pacific Ocean
3
Philippines
3
Africa
2
Australia
2
Europe
2
Extrême-Orient
2
North Pacific Ocean
2
Russia
2
5.500
1
Africa, Eastern
1
Argentina
1
Asia, Northeastern
1
Asie du Sud-Est
1
Communist countries
1
Developing countries
1
East Indies
1
Egypt
1
Europe, Eastern
1
European Union
1
European Union countries
1
Germany (West)
1
Greece
1
Italy
1
Korea
1
more ...