Subject
- Aerial spraying and dusting in agriculture -- Economic aspects -- Chad1
- Alaska Natives -- Health and hygiene1
- Alaska Natives -- Health and hygiene -- Economic aspects1
- Alaska Natives -- Medical care1
- Alaska Natives -- Medical care -- Economic aspects1
- Beef cattle -- Alberta -- Marketing -- Safety measures1
- Beef cattle -- Feeding and feeds -- Economic aspects -- Alberta1
- Birth control -- North America1
- Blister rust -- Economic aspects -- California1
- Blister rust -- Economic aspects -- Oregon1
- Blueberries -- Diseases and pests -- Control -- Economic aspects -- Oregon1
- Blueberries -- Diseases and pests -- Economic aspects -- Oregon1
- Blueberries -- Pollination -- Economic aspects -- Oregon1
- Boats and boating -- Environmental aspects -- Wisconsin1
- Boats and boating -- Wisconsin -- Economic aspects1
- Bridges -- Earthquake effects -- Economic aspects -- Oregon1
- Bridges -- Earthquake effects -- Risk assessment -- Oregon1
- Bridges -- Flood damage -- Economic aspects -- Oregon1
- Bridges -- Flood damage -- Risk assessment -- Oregon1
- Burning of land -- Oregon -- Willamette River Valley1