@misc{indiciae350b4075732d,
  title = {Preliminary geologic map of the eastern and northern parts of the Topock 7.5-minute quadrangle, Arizona and California},
  author = {K. A. Howard and Barbara E. John and J. E. Nielson},
  year = {1997},
  doi = {10.3133/ofr95534},
  url = {https://pubs.usgs.gov/publication/ofr95534},
  note = {Source identifier: ofr95534}
}