@misc{indiciaee4534766c00b,
  title = {Preliminary geologic map of Ellipse III-12-1 and vicinity},
  author = {Jerry Harbour},
  year = {1967},
  doi = {10.3133/ofr68118},
  url = {https://pubs.usgs.gov/publication/ofr68118},
  note = {Source identifier: ofr68118}
}