TY  - RPRT
TI  - Stratigraphy and biostratigraphy of Mississippian rocks at Pentagon Mountain, Lewis and Clark Range, Montana
AU  - K. M. Nichols
PY  - 1986
DO  - 10.3133/ofr8684
UR  - https://pubs.usgs.gov/publication/ofr8684
ID  - ofr8684
ER  -