@misc{indiciaece0efbab04ef,
  title = {Total intensity aeromagnetic map, parts of Guadalupe and De Baca Counties, New Mexico},
  author = {William J. Dempsey and M. E. Hill},
  year = {1950},
  doi = {10.3133/gp16},
  url = {https://pubs.usgs.gov/publication/gp16},
  note = {Source identifier: gp16}
}