- Riparian areas -- Northwest, Pacific7
- Riparian ecology -- Northwest, Pacific7
- Stream conservation -- Northwest, Pacific7
- Wildlife habitat improvement -- Northwest, Pacific7
- Agriculture -- Northwest, Pacific2
- Weeds -- Control -- Northwest, Pacific2
- Wheat -- Weed control -- Northwest, Pacific2
- 4-H clubs -- Curricula1
- Beneficial insects -- Northwest, Pacific1
- Building sites -- Environmental aspects -- Northwest, Pacific -- Handbooks, manuals, etc.1
- Cherry -- Pruning -- Pacific, Northwest1
- Christmas tree growing -- Northwest, Pacific1
- Christmas trees -- Weed control -- Northwest, Pacific1
- Construction industry -- Environmental aspects -- Northwest, Pacific -- Handbooks, manuals, etc.1
- Cooking, American -- Pacific Northwest style -- Study and teaching1
- Corn -- Diseases and pests -- Northwest, Pacific1
- Echium plantagineum -- Control -- Northwest, Pacific1
- Echium plantagineum -- Northwest, Pacific1
- Farm produce -- Northwest, Pacific -- Marketing1
- Fire resistant plants -- Northwest, Pacific1