- Oregon State University. Cooperative Extension Service2
- Barstow, Dennis1
- Carlson, Elaine K.1
- Cramer, Gail L.1
- Dickason, E. A. (Elvis Arnie), 1919 1
- Douglas County (Or.)1
- Every, R. W.1
- Garoian, Leon1
- Geological Society Of America. Cordilleran Section. Meeting (65th : 1969 : Eugene, Or.)1
- Gilbert, William E.1
- Macleod, Norman S.1
- Onions, C. A.1
- Oregon State University. Agricultural Experiment Station1
- Oregon State University. Engineering Experiment Station1
- Oregon State University. Extension Service1
- Oregon. Dept. Of Geology And Mineral Industries1
- Oregon. State Game Commission1
- Rau, Weldon W.1
- Snavely, Parke Detweiler, 1919 1
- University Of Idaho. Agricultural Extension Service1