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Subjects
- Activists.1
- African Americans.1
- Afro-Americans -- Michigan -- Detroit.1
- Afro-Americans -- Michigan.1
- Aged persons.1
- Agricultural machinery.1
- Agriculture.1
- Airplanes.1
- Anthropology -- History.1
- Anthropology -- Mexico.1
- Anthropology -- Study and teaching.1
- Antinuclear movement -- Michigan.1
- Apportionment (Election law) -- Michigan.1
- Archaeology.1
- Architects.1
- Architecture.1
- Astronomical observatories.1
- Atomic power.1
- Automobile industry and trade -- United States -- Management.1
- Automobile industry and trade.1