- Cole, W. E., and R. F. Shepherd. 1967. Mountain pine beetle, Dendroctonus ponderosae Hopk. Pages 12-15 in A. G. Davidson and R. M. Prentice (eds.), Important forest insects and diseases of mutual concern to Canada, the United States, and Mexico. Canada Department of Forestry and Rural Development, Publication 1180. 248 p.
- Shepherd, R. F. 1956. Population studies of the mountain pine beetle. Canada Department of Agriculture, Science Service, Forest Biology Division, Forest Biology Laboratory, Calgary, Alberta. 21 p.
- Shepherd, R. F. 1958. Population studies of the mountain pine beetle. Canada Department of Agriculture, Forest Biology Division, Forest Biology Laboratory, Calgary, Alberta, Interim Report 1957-1.
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- Shepherd, R. F. 1960a. Distribution of the Black Hills beetle over the host tree and factors controlling the attraction and behavior of the adult. Unpublished dissertation, University of Minnesota, Minneapolis. 123 p.
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- Shepherd, R. F. 1961. Low angle walls to eliminate edge-effects in behavior studies of Scolytidae . Canada Department of Forestry, Forest Entomology and Pathology Branch, Bi-monthly Progress Report 17:2.
- Shepherd, R. F. 1962. Population studies of the mountain pine beetle . Canada Department of Forestry, Forest Entomology and Pathology Branch, Annual Report 1961- 1962:112.
- Shepherd, R. F. 1963. Population studies (mountain pine beetle) . Canada Department of Forestry, Forest Insect and Pathology Branch, Annual Report 1963:114-115.
- Shepherd, R. F. 1965a. Distribution of attacks by Dendroctonus ponderosae Hopk. on Pinus contorta Dougl. var. latifolia Engelm. Canadian Entomologist 97:207-215.
- Shepherd, R. F. 1965b. The mountain pine beetle, Dendroctonus ponderosae Hopk.: (d) host attraction studies. Canada Department of Forestry, Forest Entomology and Pathology Branch, Annual Report 1965: 125-126.
- Shepherd, R. F. 1966. Factors influencing the orientation and rates of activity of Dendroctonus ponderosae Hopkins (Coleoptera: Scolytidae) . Canadian Entomologist 98:507-518.
- Shepherd, R. F., and J. A. Cook. 1962. Factors affecting the attraction and susceptibility of trees to the mountain pine beetle. Pages 112-113. Canada Department of Agriculture, Forest Entomology and Pathology Branch, Annual Report 1961-1962.
- Shepherd, R. F., and J. A. Cook. 1963. Host attraction studies (mountain pine beetle). Pages 115-116. Canada Department of Forestry, Forest Insect and Pathology Branch, Annual Report 1963.
- Shepherd, R. F., and J. A. Watson. 1959. Bluestain fungi associated with the mountain pine beetle (Dendroctonus monticolae) . Canada Department of Agriculture, Division of Forest Biology, Bi-monthly Progress Report 15:2-3.