- Barr, B. A. 1969. Sound production in in Scolytidae (Coleoptera) with emphasis on the genus Ips. Canadian Entomologist 101:636-672.
- Barr, W. F. 1947. Parasites of two species of Coleoptera associated with Monterey cypress. (Dendrosoter integer on Phloesinus cupressi; Xorides insularis on Atimia maristima. Pan-Pacific Entomologist 23(2):58.
- Furniss, M. M., and W. F. Barr. 1975. Insects affecting important native shrubs of the northwestern United States (Scolytidae, p. 16-18). United States Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, General Technical Report INT-19. 64 p.
- Horning, D. S., and W. F. Barr. 1970. Insects of Craters of the Moon National Monument, Idaho. University of Idaho, College of Agriculture, Miscellaneous Series Nr. 8. 118 p.
- Portman, R. W., and W. F. Barr. 1952. Alfalfa and clover pests in Idaho [Scolytidae, p. 5]. Idaho Agricultural College, Extension Circular 122. 8 p.
- Williamson, D. L., J. A. Schenk, and W. F. Barr. 1966. The biology of Conophthorus monticolae in northern Idaho . Forest Science 12:234-240.
- Barr, B. A., D. L. Hanson, and C. S. Koehler. 1978. Red turpentine beetle: a pest of pines. Division of Agricultural Sciences, University of California, Berkeley. Leaflet 21055. 4 p.
- de Groot, P., G. D. Barr, G. Birgersson, H. Pierce, J. Borden, Y. Berisford, and C. Berisford. 1991. Evidence for a female-produced pheromone in the white pine cone beetle, Conophthorus coniperda (Schwarz), and in the red pine cone beetle, C resinosae Hopkins (Coleoptera: Scolytidae) . The Canadian Entomologist 123:1057-1064.