@misc{indiciae44ffebec8f09,
  title = {Structural and free field seismic measurements of the Zonia mine blast, Arizona},
  author = {Richard Navarro},
  year = {1974},
  doi = {10.3133/ofr741076},
  url = {https://pubs.usgs.gov/publication/ofr741076},
  note = {Source identifier: ofr741076}
}