Anonymous. 1975z. Biological evaluation of spruce beetle near the Workman and Fernwood Sales, Rio Grande National Forests. United States Department of Agriculture, Forest Service, Rocky Mountain Region, Lakewood, Colorado, State and Private Forestry, Biological Evaluation R2-75-18. 2 p.
Anonymous 1975
Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
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