TY  - RPRT
TI  - Geologic map and coal sections of the Pine Butte School Quadrangle, Big Horn County, Montana
AU  - W. J. Mapel
PY  - 1978
DO  - 10.3133/mf1014
UR  - https://pubs.usgs.gov/publication/mf1014
ID  - mf1014
ER  -