Subject
- Columbia Basin Agricultural Research Center -- Periodicals11
- Agriculture -- Research -- Columbia River Watershed6
- Agriculture -- Columbia River Watershed -- Periodicals4
- Agriculture -- Columbia River Watershed -- Statistics -- Periodicals4
- Barges -- Northwest, Pacific -- Congresses2
- Beef cattle -- West (U.S.) -- Breeding2
- Cargo ships -- Northwest, Pacific -- Congresses2
- Coastwise shipping -- Northwest, Pacific -- Congresses2
- Fungicides -- Analysis2
- Inland water transportation -- Northwest, Pacific -- Congresses2
- Insecticides -- Analysis2
- Merchant marine -- Northwest, Pacific -- Congresses2
- Regional planning -- Oregon2
- Shipping -- Northwest, Pacific -- Congresses2
- 4-H clubs1
- Agricultural experiment stations -- Research -- Oregon -- Jackson County1
- Agriculture -- Oregon -- Jackson County -- Field experiments1
- Agriculture -- Research -- Columbia River Basin (Or. and Wash.) -- Periodicals1
- Agriculture -- Research -- Lower Columbia River Valley (Or. and Wash.)1
- Barley -- Varieties -- Oregon -- Umatilla County -- Testing1