Subject
- Agricultural estimating and reporting -- Oregon3
- Agriculture -- Oregon -- Statistics3
- Farm produce -- Oregon -- Statistics3
- Tualatin River Watershed (Or.)2
- Water quality -- Oregon -- Tualatin River Watershed2
- Agricultural laws and legislation1
- Agricultural pests -- Integrated control1
- Agriculture -- Economic aspects -- Data processing -- Congresses1
- Agriculture -- Economic aspects -- Oregon -- Statistics1
- Beef cattle -- Feeding and feeds -- Oregon, Eastern1
- Best management practices (Pollution prevention) -- Oregon -- Congresses1
- Detroit Lake Region (Or.)1
- Economics -- Oregon -- Umatilla County1
- Environmental protection -- Oregon -- Citizen participation1
- Finance, Public -- Oregon1
- Food law and legislation1
- Inland water transportation -- Northwest, Pacific1
- Input-output analysis -- Oregon -- Umatilla County1
- Land use -- Law and legislation -- Economic aspects -- Oregon1
- Marion County (Or.) -- Economic conditions1