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Subject
- Visitors, Foreign37
- History20
- Relations8
- Civilization6
- Social life and customs6
- Foreign relations5
- Noncitizens4
- Social conditions4
- Communism3
- Description and travel3
- Economic conditions3
- Guerrillas3
- Railroad travel3
- Americans2
- Chinese2
- Ethnic conflict2
- Ethnic relations2
- Europeans2
- Foreign influences2
- Hijacking of trains2