TY  - RPRT
TI  - Cross sections, Mammoth coal bed and Rehder split of Mammoth coal bed, Bull Mountain coal field, Montana
AU  - C. W. Connor
PY  - 1981
DO  - 10.3133/ofr81190
UR  - https://pubs.usgs.gov/publication/ofr81190
ID  - ofr81190
ER  -