@misc{indiciaef234f39a21a3,
  title = {Geologic map of the Planet 2 NW Quadrangle, Mohave County, Arizona},
  author = {Ivo Lucchitta and Neil H. Suneson},
  year = {1989},
  doi = {10.3133/ofr89673},
  url = {https://pubs.usgs.gov/publication/ofr89673},
  note = {Source identifier: ofr89673}
}