@misc{indiciae8d8cf66ac6b8,
  title = {Seismicity map of the State of Montana},
  author = {B.G. Reagor and C. W. Stover and S. T. Algermissen},
  year = {1985},
  doi = {10.3133/mf1819},
  url = {https://pubs.usgs.gov/publication/mf1819},
  note = {Source identifier: mf1819}
}