Gibson, K. E., M. D. McGregor, and R. D. Oakes. 1985. Mountain pine beetle infestation in ponderosa pine on Crow/Northern Cheyenne Indian Reservations, Montana, 1984. United States Department of Agriculture, Forest Service, Northern Region, Report 85-9. 16 p.
Gibson et al. 1985
Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
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