@misc{indiciaed2c08e016f70,
  title = {A seismic-refraction survey of crustal structure in central Arizona},
  author = {David H. Warren},
  year = {1969},
  doi = {10.1130/0016-7606(1969)80[257:assocs]2.0.co;2},
  url = {https://pubs.usgs.gov/publication/70224268},
  note = {Source identifier: 70224268}
}