McGregor, M. D., and S. Tunnock. 1971. Status of mountain pine beetle infestations on the Hebgen Lake Ranger District, Montana. United States Department of Agriculture, Forest Service, Northern Region, State and Private Forestry, Report 71-45.
McGregor & Tunnock 1971
Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
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