TY  - RPRT
TI  - Measured stratigraphic section of the Upper Cretaceous Frontier Formation near McLeod, Sweet Grass County, Montana
AU  - R. G. Tysdal
AU  - D. J. Nichols
PY  - 1989
DO  - 10.3133/ofr89655
UR  - https://pubs.usgs.gov/publication/ofr89655
ID  - ofr89655
ER  -