Subject
- Railroad ties2
- Biomechanics1
- Bipedalism1
- Birds -- Ecology -- Data processing1
- Birds -- Migration -- Mathematical models1
- Birdsongs -- Data processing1
- Chinese Americans -- Oregon -- Portland1
- Chlorine -- Physiological effect1
- Chlorine -- Toxicology1
- Chlorine and derivatives as disinfectants1
- Corn -- Disease and pest resistance1
- Dissertations, Academic -- United States -- Bibliography1
- Dissertations, Academic -- United States -- Bibliography -- Catalogs1
- Drinking water -- Purification -- Health aspects -- United States1
- Drug interactions1
- Ecology -- Research -- Data processing1
- Fish-culture -- Oregon -- Statistics1
- Fishery management -- Oregon -- Statistics1
- Fishing -- Oregon -- Statistics1
- Flavonoids -- Pharmacokinetics1