- Buckhorn, W. J. 1944. Instructions for making bark beetle surveys in the virgin ponderosa pine stands of Oregon and Washington. Portland, Oregon. 64 p. (processed).
- Buckhorn, W. J. 1957. Forest insect conditions, Malheur National Forest and adjacent timberlands, 1946-1956. United States Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 12 p., illus.
- Buckhorn, W. J., and P. W. Orr. 1958. Forest insect conditions in the Pacific Northwest during 1958. United States Department of Agriculture, Forest Service, Pacific Northwest Forest and Forest Range Experiment Station, p. 14-22.
- Buckhorn, W. J., and P. W. Orr. 1959. Forest insect conditions in the Pacific Northwest during 1959. Pages 12-20. United States Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station.
- Buckhorn, W. J., and P. W. Orr. 1961. Forest insect conditions in the Pacific Northwest during 1960. United States Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 42 p.
- Buckhorn, W. J., and P. W. Orr. 1962. Forest insect conditions in the Pacific Northwest during 1961. United States Department of Agriculture, Forest Service, Insect and Disease Control Branch, Division of Timber Management, Pacific Northwest Region. 41 p.
- Sartwell, C., R. F. Schmitz, and W. J. Buckhorn. 1971. Pine engraver, Ips pini, in the western states. United States Department of Agriculture, Forest Service, Forest Pest Leaflet 122. 5 p.
- Wear, J. F., and W. J. Buckhorn. 1955. Organization and conduct of forest aerial surveys in Oregon and Washington. United States Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 41 p.