TY  - RPRT
TI  - Geology and undiscovered oil and gas resources in the Madison Group, Williston Basin, North Dakota and Montana
AU  - Stephanie B. Gaswirth
AU  - Paul G. Lillis
AU  - Richard M. Pollastro
AU  - Lawrence O. Anna
PY  - 2010
UR  - https://pubs.usgs.gov/publication/70044634
ID  - 70044634
ER  -