TY  - RPRT
TI  - Coal drilling during 1979 in Williams County, North Dakota, and in Beaverhead, Big Horn, Dawson, Fallon, Garfield, McCone, Musselshell, Powder River, Prairie, Roosevelt, Rosebud, and Wibaux Counties, Montana
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1981
DO  - 10.3133/ofr81314
UR  - https://pubs.usgs.gov/publication/ofr81314
ID  - ofr81314
ER  -