TY  - RPRT
TI  - Stratigraphy, petrology, and provenance of the Albian Blackleaf Formation and the Cenomanian to Turonian lower part of the Frontier Formation in part of Beaverhead and Madison Counties, Montana
AU  - T. S. Dyman
AU  - W. J. Perry
AU  - D. J. Nichols
PY  - 1988
UR  - https://pubs.usgs.gov/publication/70014294
ID  - 70014294
ER  -