Hamel, D. R., M. D. McGregor, and M. J. Berg. 1975a. Status of mountain pine beetle infestations: Yellowstone National Park, Wyoming. United States Department of Agriculture, Forest Service, Northern Region, State and Private Forestry, Forest Environmental Protection, Report 75-4. 7 p.
Hamel et al. 1975
Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
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