Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Holsten, E. H., and K. P. Zogas. 1979. Spruce beetle: Summit Lake, Dry Gulch, Cooper Landing. United States Department of Agriculture, Forest Service, Alaska Region, State and Private Forestry, Biological Evaluation R-10-79-4. 18 p.