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Subjects
- Land use -- Michigan.[remove]21
- Conservation of natural resources -- Michigan.5
- Environmental protection -- Michigan.5
- Logging -- Michigan.5
- Business records.4
- Indians of North America -- Michigan.4
- Lumbering -- Michigan.4
- Refuse and refuse disposal -- Michigan.4
- Wetlands -- Michigan.3
- Agriculture -- Michigan.2
- Antislavery movements -- United States.2
- Cities and towns -- Growth -- Michigan.2
- Citizens' associations -- Michigan.2
- Construction industry.2
- Energy conservation -- Michigan.2
- Forests and forestry -- Michigan.2
- Hazardous wastes -- Michigan.2
- Land use -- Michigan -- Planning.2
- Lumber industry.2
- Medicine -- Michigan.2