Major habitat types, community types, and plant communities in the Rocky Mountains - Alexander, Robert R.; Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (Fort Collins, Colo, U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1985)
https://www.biodiversitylibrary.org/bibliography/99752
Keywords: Botany|Ecology|Forest ecology|Plant communities|Rocky Mountains