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- Forests and forestry -- Study and teaching (Middle school) -- Oregon -- Willamette River Valley1
- Forests and forestry -- Study and teaching -- Oregon -- Willamette River Valley -- Bilingual method1
- Forests and forestry -- Vocational guidance -- Oregon -- Willamette River Valley1
- Hispanic American youth -- Oregon -- Willamette River Valley1
- Vocational guidance -- Oregon -- Willamette River Valley1