@misc{indiciae87d0f07ad6de,
  title = {Aeromagnetic map of the Midas quadrangle, Elko County, Nevada},
  author = {F. A. Petrafeso and C. L. Long},
  year = {1968},
  doi = {10.3133/ofr68288},
  url = {https://pubs.usgs.gov/publication/ofr68288},
  note = {Source identifier: ofr68288}
}