@misc{indiciae7e931cfa2bc5,
  title = {Seismology},
  author = {John R. Filson and Roger D. Borcherdt and C. Langer and D. Simpson},
  year = {1989},
  doi = {10.1193/1.1585212},
  url = {https://pubs.usgs.gov/publication/70233981},
  note = {Source identifier: 70233981}
}