@misc{indiciae9344428cee23,
  title = {Crustal structure in the eastern Colorado Plateaus Provence from seismic-refraction measurements},
  author = {John C. Roller},
  year = {1964},
  doi = {10.3133/70040815},
  url = {https://pubs.usgs.gov/publication/70040815},
  note = {Source identifier: 70040815}
}