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Subjects
- Animals -- Michigan.[remove]3
- Airports -- Michigan.1
- Automobile industry and trade.1
- Automobile service stations -- Michigan.1
- Automobiles -- Michigan.1
- Barns -- Michigan.1
- Birds -- Michigan.1
- Bridges -- Michigan.1
- Churches -- Michigan.1
- Civil rights movements -- United States.1
- Conservation of natural resources -- Michigan.1
- Courthouses -- Michigan.1
- Dwellings -- Michigan.1
- Environmental legislation -- United States.1
- Environmental policy -- United States.1
- Environmental protection -- Michigan -- Detroit.1
- Environmental protection -- Michigan.1
- Environmental protection -- United States.1
- Festivals -- Michigan.1
- Fiscal policy -- United States.1