@misc{indiciae88daa7b7e968,
  title = {Coal drilling during 1978 in Big Horn, Daniels, Dawson, Musselshell, Richland, Roosevelt, Rosebud, Valley, and Yellowstone counties, Montana},
  author = {Montana Bureau of Mines and Geology and Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1980},
  doi = {10.3133/ofr80267},
  url = {https://pubs.usgs.gov/publication/ofr80267},
  note = {Source identifier: ofr80267}
}