@misc{indiciae1cc663cfe743,
  title = {A survey of practice in determining magnitude of near earthquakes: summary report for networks in North, Central and South America},
  author = {William Hung Kan Lee and R.J. Wetmiller},
  year = {1976},
  doi = {10.3133/ofr76677},
  url = {https://pubs.usgs.gov/publication/ofr76677},
  note = {Source identifier: ofr76677}
}