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Subjects
- Environmental protection -- Michigan.[remove]16
- Conservation of natural resources -- Michigan.11
- Land use -- Michigan.5
- Refuse and refuse disposal -- Michigan.4
- Cities and towns -- Growth -- Michigan.3
- Land use -- Michigan -- Planning.3
- Natural areas -- Michigan.3
- Wetland conservation -- Michigan.3
- Wetlands -- Michigan.3
- Birds -- Michigan.2
- Citizens' associations -- Michigan.2
- Commerce and industry.2
- Energy conservation -- Michigan.2
- Hazardous wastes -- Michigan.2
- Pesticides -- Environmental aspects -- Michigan.2
- Recycling (Waste, etc.) -- Michigan.2
- Salvage (Waste, etc.) -- Michigan.2
- Water -- Michigan.2
- Water quality -- Michigan.2
- Water rights -- Michigan.2