Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Landis, T. D., and R. H. Frye. 1974. Tree injury and mortality in the Dillon-Keystone area, Dillon Ranger District, White River National Forest. United States Department of Agriculture, Forest Service, Rocky Mountain Region, Report R2-74-16. 7 p.