@misc{indiciae1befc3d23e9c,
  title = {Mineral resources of additions to the La Madre Mountains Wilderness Study Area, Clark County, Nevada},
  author = {J. E. Conrad and H. R. Blank and J. E. Olson},
  year = {1990},
  doi = {10.3133/ofr90679},
  url = {https://pubs.usgs.gov/publication/ofr90679},
  note = {Source identifier: ofr90679}
}