Subject
- Animal ecology -- Study and teaching1
- Biology -- Study and teaching (Secondary)1
- Cork oak -- Bibliography1
- Ecology -- Study and teaching1
- Forests and forestry -- Northwest, Pacific1
- Forests and forestry -- Research -- Northwest, Pacific1
- Land use -- Oregon -- Tillamook County -- Planning1
- Land use, Rural -- Oregon -- Tillamook County -- Planning1
- Pacific Northwest Forest and Range Experiment Station (Portland, Or.)1
- Pocket gophers1
- Regional planning -- Oregon -- Tillamook County1
- Selection (Plant breeding)1
- Trees -- Breeding1