Hessburg, P., R. Mitchell, and G. Filip. 1994. Historical and current roles of insects and pathogens in eastern Oregon and Washington forested landscapes. United States Department of Agriculture, Forest Service, Pacific Northwest Research Station (Portland, OR), General Technical Report PNW-GTR-327.
Hessburg et al. 1994
Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
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