- Wood, S. L., G. C. Stevens, and H. J. Lezama. 1991b. Scolytidae (Coleoptera) de Costa Rica II Clave para la subfamilia Scolytinae, tribus: Scolytini, Ctenophorini, Micracini, Ipini, Dryocoetini, Xyleborini y Chryphalini [Scolytidae (Coleoptera) from Costa Rica: Key to Scolytini, Ctenophorini, Micracini, Ipini, Dryocoetini, Xyleborini and Cryphalini]. Revista de Biologia Tropical 39279-306.
- Wood, S. L., G. C. Stevens, and H. J. Lezama. 1991a. Los Scolytidae de Costa Rica: Clave de generos y de la subfamilia Hylesinae (Coleoptera) [The Scolytidae of Costa Rica: Key to genera and to the subfamily Hylesinae (Coleoptera). Revista de Biologia Tropical 39125-148.
- Stevens, R. E., and F. G. Hawksworth. 1970. Insects and mites associated with dwarf mistletoes. United States Department of Agriculture, Forest Service (Rocky Mountain Forest and Range Experiment Station), Research Note RM-5912.
- Bodenham, J., and R. E. Stevens. 1981. Insects associated with second-year ponderosa pine cones, Larimer and Boulder counties, Colorado . Southwestern Naturalist 26:375-378.
- Buffam, P. E., C. K. Lister, R. E. Stevens, and R. H. Frye. 1973. Fall cacodylic acid treatments to produce lethal traps for spruce beetles . Environmental Entomology 2:259-262.
- Chansler, J. F., D. B. Cahill, and R. E. Stevens. 1970. Cacodylic acid field tested for control of mountain pine beetles in ponderosa pine. United States Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, Research Note RM-161. 3 p.
- Dolph, R. E., C. Sartwell, R. L. Johnsey, L. N. Kline, P. G. Lauterbach, and G. Stevens. 1975. Insects. Pages 151-152, 168-169, 198-200 in Forest residues management guidelines for the Pacific Northwest. United States Department of Agriculture, Forest Service, Pacific Northwest Research Laboratory PNW-33. 273 p.
- Kaufmann, M. R., and R. E. Stevens. 1984. Vigor of ponderosa pine trees surviving mountain pine beetle attack. United States Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, Research Note RM-448. 5 p.
- McCambridge, W. F., and R. E. Stevens. 1982. Effectiveness of thinning ponderosa pine stands in reducing mountain pine beetle-caused tree losses in the Black Hills, preliminary observations. United States Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, Research Note RM-414. 3 p.
- Parker, D. L., and R. E. Stevens. 1979. Mountain pine beetle infestation characteristics in ponderosa pine, Kaibab Plateau, Arizona, 1975-1977. United States Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, Research Note RM-367. 4 p.
- Sartwell, C., and R. E. Stevens. 1975. Mountain pine beetle in ponderosa pine: prospects for silvicultural control in second-growth stands . Journal of Forestry 73:136-140.
- Sharp, R. H., and R. E. Stevens. 1962. New technique for spraying standing trees infested with bark beetles . Journal of Forestry 60:548-550.
- Stevens, R. E. 1956. Fir engraver beetle (Scolytus ventralis). United States Department of Agriculture, Forest Service, Forest Pest Leaflet 13. 7 p. (revised 1971).
- Stevens, R. E. 1957a. Ethylene dibromide emulsion spray for control of the mountain pine beetle in lodgepole pine. United States Department of Agriculture, Forest Service, California Forest and Range Experiment Station, Forest Research Notes 122. 3 p.
- Stevens, R. E. 1957b. Insect caused damage to 1956 Douglas-fir cone crop in California. United States Department of Agriculture, Forest Service, California Forest and Range Experiment Station, Forest Research Notes 120. 2 p.
- Stevens, R. E. 1959a. Ethylene dibromide sprays for controlling bark beetles in California. United States Department of Agriculture, Forest Service, California Forest and Range Experiment Station, Forest Research Notes 147. 6 p.
- Stevens, R. E. 1959b. "What's wrong with my trees?" Douglas-fir damaged by engraver beetles. United States Department of Agriculture, Forest Service, California Forest and Range Experiment Station, Miscellaneous Paper 30. 2 p.
- Stevens, R. E. 1971. Fir engraver. United States Department of Agriculture, Forest Service, Forest Pest Leaflet 13 (revised). 7 p.
- Stevens, R. E. 1972. Use of silviculture in control of bark beetles (Scolytidae) . Folia Entomologica Mexicana 23- 24:87-88.
- Stevens, R. E. 1973. Association of Pityophthorus opimus with Pissodes terminalis in Colorado lodgepole pine (Coleoptera: Scolytidae and Curculionidae) . Coleopterists Bulletin 27:141-142.
- Stevens, R. E. 1980. Natural enemies of bark beetles: Potential for biological control. Page 31 in Thirty-first annual Western Forest Insect Work Conference, Proceedings, El Paso, Texas, 2-6 March 1980. Canada Department of the Environment, Canadian Forestry Service, Pacific Forest Research Centre, Victoria, British Columbia. 60 p.
- Stevens, R. E. 1981. Natural enemies of bark beetles in the United States: potential for biological control. Pages 59-62 in J. R. Coulson (ed.), Proceedings of the joint American-Soviet conference on use of beneficial organisms in the control of crop pests. Washington, D. C. 13-14 August 1979. 62 p.
- Stevens, R. E., J. W. Brewer, and D. A. Leatherman. 1980. Insects associated with ponderosa pine in Colorado. United States Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, General Technical Report RM-75. 42 p.
- Stevens, R. E., J. W. Brewer, and D. A. Leatherman. 1982. Insects associated with ponderosa pine in the Rocky Mountains and the Southwest. United States Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, General Technical Report RM-94. 44 p.
- Stevens, R. E., D. B. Cahill, C. K. Lister, and G. E. Metcalf. 1974. Timing cacodylic acid treatments for control of mountain pine beetles in infested ponderosa pines. United States Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, Research Note RM-262. 4 p.
- Stevens, R. E., and H. W. Flake. 1974. A roundheaded pine beetle outbreak in New Mexico. United States Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, Research Note RM-259. 4 p.
- Stevens, R. E., and R. C. Hall. 1960. Beetles and burned timber. United States Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station, Miscellaneous Paper 49. 2 p. (processed).
- Stevens, R. E., and F. G. Hawksworth. 1970. Insects and mites associated with dwarf mistletoes. United States Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, Research Paper RM-59. 12 p.
- Stevens, R. E., and F. G. Hawksworth. 1984. Insect-dwarf mistletoe associations: an update. Pages 94-101 in Biology of dwarf mistletoe. Proceedings of the symposium, 8 August 1984, Fort Collins, Colorado. United States Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, General Technical Report RM-111.
- Stevens, R. E., C. K. Lister, and J. L. Linnane. 1979. Outbreak of a twig beetle, Pityophthorus opaculus LeConte, in Colorado . Coleopterists Bulletin 33:268.
- Stevens, R. E., W. F. McCambridge, and C. B. Edminster. 1980. Risk rating guide for mountain pine beetle in Black Hills ponderosa pine. United States Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, Reseach Note RM-385. 2 p.
- Stevens, R. E., and J. C. Mitchell. 1970. Lindane spray effective against mountain pine beetle in the Rocky Mountains. United States Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, Research Note RM-167. 3 p.
- Stevens, R. E., C. A. Myers, W. F. McCambridge, G. L. Downing, and J. G. Laut. 1974. Mountain pine beetle in Front Range ponderosa pine: what it's doing and how to control it. United States Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, General Technical Report RM-7. 4 p.
- Szent-Ivany, J. J. H., and R. M. Stevens. 1966. Insects associated with Coffea arabica and some other crops in the Wau-Bulolo area of New Guinea [Scolytidae, p 117] . Papua and New Guinea Agricultural Journal 18:101-118.
- Wood, S., G. Stevens, and H. Lezama. 1991a. Los Scolytidae de Costa Rica: clave de géneros y de la subfamilia Hylesinae (Coleoptera) [The Scolytidae of Costa Rica: Key to genera and to the subfamily Hylesinae (Coleoptera)]. Revista de Biologia Tropical 39:125-148.
- Wood, S., G. Stevens, and H. Lezama. 1991. Scolytidae (Coleoptera) de Costa Rica II Clave para la subfamilia Scolytinae, tribus: Scolytini, Ctenophorini, Micracini, Ipini, Dryocoetini, Xyleborini y Chryphalini [Scolytidae (Coleoptera) from Costa Rica: Key to Scolytini, Ctenophorini, Micracini, Ipini, Dryocoetini, Xyleborini and Cryphalini] . Revista de Biologia Tropical 39:279-306.
- Wood, S., G. Stevens, and H. Lezama. 1992. Los Scolytidae (Coleoptera) de Costa Rica: Clave de la subfamilia Scolytinae, Tribu Corthylini [The Scolytidae (Coleoptera) from Costa Rica: Key to the subfamily Corthylini]. Revista de Biologia Tropical 40:247-286.