Pasek, J., and W. Schaupp. 1992. Status and trends of mountain pine beetle populations in the Bear Mountain and White House Gulch areas on the Harney Ranger District, Black Hills National Forest, South Dakota. United States Department of Agriculture, Forest Service, Rocky Mountain Region (Lakewood, CO), Biological Evaluation R2-92-04.
Pasek & Schaupp 1992
Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
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