Geographic Subject
Afghanistan
1
Africa
1
Asia
1
Asia, Central
2
Burma
1
Caucasus
1
China
2
East Asia
1
Europe
1
India
2
Japan
1
Korea (North)
1
Middle East
1
Mongolia
1
Pakistan
1
Russia (Federation)
1
Sinkiang Uighur Autonomous Region
1
Soviet Union
9
United States
1
Vietnam (Democratic Republic)
1
Xinjiang Uygur Zizhiqu (China)
1