Hamel, D. R., R. D. Oakes, M. D. McGregor, and R. C. Lood. 1975. Evaluation of Douglas-fir beetle infestations, North Fork, Clearwater River drainage, Idaho. United States Department of Agriculture, Forest Service, Northern Region, State and Private Forestry, Insect and DiseaseReport 75-11. 8 p.
Hamel et al. 1975
Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
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