- McComb, D. 1953. The use of trap trees for the control of the Engelmann spruce beetle, Dendroctonus engelmanni Hopkins. Unpublished thesis, Utah State University, Logan.
- McComb, D. 1955. Relationship between trap tree felling dates and subsequent Engelmann spruce beetle attack. United States Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, Research Note 23. 5 p.
- McComb, D., and G. F. Knowlton. 1953. Utah records of insect enemies of western forests. Utah Agricultural Experiment Station, Mimeograph Series 398. 5 p.
- Nagel, R. H., F. B. Knight, and D. McComb. 1956a. The trap-tree method for controlling Engelmann spruce beetles . Colorado-Wyoming Academy of Science 4:48-49.
- Nagel, R. H., F. B. Knight, and D. McComb. 1956b. The trap-tree method for controlling Engelmann spruce beetles . Entomological Society of America, North Central Branch, Proceedings 11:20.
- Nagel, R. H., F. B. Knight, and D. McComb. 1957. Trap tree method for controlling the Engelmann spruce beetle in Colorado . Journal of Forestry 55:894-898.