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- Emigration and immigration7,633
- Government policy2,023
- Immigrants1,672
- History1,565
- Noncitizens803
- Emigration and immigration law725
- Social conditions685
- Social aspects511
- Economic aspects464
- Undocumented immigrants390
- Refugees321
- Mexicans299
- Foreign workers292
- Economic conditions254
- Race relations231
- Ethnic relations209
- Description and travel207
- Legal status, laws, etc196
- Politics and government191
- Citizenship184