Alexander, R. R. (1988). Forest vegetation on national forests in the Rocky Mountain and Intermountain regions: Habitat types and community types. U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station.
Chicago Style (17th ed.) CitationAlexander, Robert R. Forest Vegetation on National Forests in the Rocky Mountain and Intermountain Regions: Habitat Types and Community Types. Fort Collins, Colo.: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1988.
MLA (9th ed.) CitationAlexander, Robert R. Forest Vegetation on National Forests in the Rocky Mountain and Intermountain Regions: Habitat Types and Community Types. U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1988.