Forest vegetation of the Black Hills National Forest of South Dakota and Wyoming : a habitat type classification - Hoffman, George R.; 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, [1987])
https://www.biodiversitylibrary.org/bibliography/98704
Keywords: Black Hills National Forest (S.D. and Wyo.)|Forests and forestry|South Dakota|Statistics|Vegetation classification|Wyoming