TY  - RPRT
TI  - Twenty-First annual report of the Director of the United States Geological Survey, 1899-1900: Part V - Forest reserves
AU  - Charles D. Walcott
PY  - 1900
DO  - 10.3133/ar21_5
UR  - https://pubs.usgs.gov/publication/ar21_5
ID  - ar21_5
ER  -