Landgraf, A. E., and H. E. Ostmark. 1958. Forest insect conditions in the central Rocky Mountains, 1957. United States Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, Paper 34. 20 p.
Landgraf & Ostmark 1958
Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
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