- Oregon State University. Extension Service54
- United States. Forest Service30
- Oregon State University Libraries And Press23
- Bayer, Range D., 1947 16
- Hatfield Marine Science Center16
- Oregon State University. Agricultural Experiment Station16
- Oregon. Department Of Fish And Wildlife16
- Oregon State University. College Of Forestry13
- United States. Forest Service. Pacific Northwest Region. Thirty Year Club12
- Oregon State University. Forest Research Laboratory10
- Oregon. Dept. Of Geology And Mineral Industries10
- Geyer, Nancy A.9
- Hansen, Gayle I.9
- Uscian, John M.9
- Webster, Janet G.9
- Filip, Gregory M.8
- Gilmont, Susan8
- Osu Forestry Alumni Association8
- Baer, Adela S., 1931 7
- Boock, Michael7