TY  - RPRT
TI  - Geologic map of the Bob Marshall and Great Bear Wildernesses and adjacent study areas, Montana
AU  - M. R. Mudge
AU  - R.L. Earhart
PY  - 1991
DO  - 10.3133/i2181
UR  - https://pubs.usgs.gov/publication/i2181
ID  - i2181
ER  -