1. 1992. Woody plant establishment on reclaimed lands at Trapper Mine in northwest Colorado. In Reclamation with Trees and Woody Shrubs. USDI Office of Surface Mining Reclamation and Enforcement: Duluth, MN; 611-615.
2. Alberta Agriculture. 1980. Propagation of Saskatoons. Alberta Tree Nursery and Horticulture Centre: Edmonton.
3. 1985. Major habitat types, community types, and plant communities in the Rocky Mountains. Report No. RM-123. USDA Forest Service, Rocky Mountain Forest and Range Experiment Station: Fort Collins, CO.
4. 1987. Classification of the forest vegetation of Colorado by habitat type and community type. Report No. RM-478. Rocky Mountain Forest and Range Experiment Station, USDA Forest Service: Fort Collins, CO.
5. Re-formation of mycorrhizal symbioses on Mount St Helens, 1980–1990: interactions of rodents and mycorrhizal fungi