Orr, P. W., L. F. Pettinger, and R. E. Dolph. 1966. Forest insect conditions in the Pacific Northwest during 1965. United States Department of Agriculture, Forest Service, Insect and Disease Control Branch, Division of Timber Management, Pacific Northwest Region, Portland, Oregon. 70 p.
Orr et al. 1966
Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
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