TY  - BOOK
AU  - Hoffman, George R
AU  - Robert R. Alexander
TI  - Forest Vegetation of the Bighorn Mountains, Wyoming: A habitat type classification
U1  - P 634.9143 21st ed.
PY  - 1976///
CY  - Colorado
PB  - Colorado State University
KW  - Pinus ponderosa
KW  - Spiraea Betulifolia
KW  - Geography and climate
KW  - forest vegetation
N1  - USDA Forest service Research paper-170
ER  -