Subject
- Land use -- Law and legislation -- Economic aspects -- Oregon3
- Land use -- Government policy -- Economic aspects -- Oregon2
- Children with disabilities -- Education -- Law and legislation -- Oregon1
- Cities and towns -- Growth -- Economic aspects -- Oregon -- Portland1
- Cities and towns -- Oregon -- Growth -- Evaluation1
- Cities and towns -- Oregon -- Willamette River Valley -- Growth1
- Climatic changes -- Oregon -- Willamette River Valley1
- Land use -- Economic aspects -- Oregon1
- Land use -- Law and legislation -- Oregon1
- Land use -- Law and legislation -- Oregon -- Evaluation1
- Land use -- Law and legislation -- Oregon -- Willamette River Valley1
- Land use -- Oregon -- Planning -- Evaluation1
- Land use -- Oregon -- Willamette River Valley1
- Land use -- Planning -- Economic aspects -- Oregon1
- Landscape changes -- Oregon -- Willamette River Valley1
- Rain and rainfall -- Oregon -- Willamette River Valley1
- Real property -- Valuation -- Economic aspects -- Oregon1
- Real property -- Valuation -- Oregon1
- Real property -- Valuation -- Oregon -- Portland1
- Right of property -- Economic aspects -- Oregon1