@misc{indiciae54b054d00322,
  title = {Map showing number of earthquakes per 1,000 square kilometres (400 square miles) for southeast Idaho and adjoining states, 1960-1969},
  author = {David L. Schleicher and H. R. Covington},
  year = {1976},
  doi = {10.3133/ofr76236},
  url = {https://pubs.usgs.gov/publication/ofr76236},
  note = {Source identifier: ofr76236}
}