@misc{indiciae2bdc518f4359,
  title = {Mineral resources of wilderness study areas: Black Mountains region, Arizona},
  author = {Robert C. Greene},
  year = {1989},
  doi = {10.3133/b1737},
  url = {https://pubs.usgs.gov/publication/b1737},
  note = {Source identifier: b1737}
}