Flake, H. W. 1973. Mountain pine beetle, Big Springs Ranger District, Kaibab National Forest, Arizona, 1973. United States Department of Agriculture, Forest Service, Southwestern Region, State and Private Forestry, Biological Evaluation R3-74-1.
Flake 1973
Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
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