TY  - RPRT
TI  - Maps showing thickness and general distribution of Mesozoic and Paleozoic rocks in south-central Montana
AU  - C.P. Rogers
AU  - L.S. Gardner
AU  - Herbert D. Hadley
PY  - 1945
DO  - 10.3133/om43
UR  - https://pubs.usgs.gov/publication/om43
ID  - om43
ER  -