Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Schmid, J. M., and R. H. Frye. 1976. Stand ratings for spruce beetles. United States Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, Research Note RM-309. 4 p.
This page uses cascading style sheets (CSS). It should display correctly using current versions of all major browsers.