@misc{indiciaecfff60b82e51,
  title = {Mineral resources map of the Hillsboro and San Lorenzo Quadrangle, Sierra and Grant counties, New Mexico},
  author = {D. C. Hedlund},
  year = {1977},
  doi = {10.3133/mf900b},
  url = {https://pubs.usgs.gov/publication/mf900B},
  note = {Source identifier: mf900B}
}