@misc{indiciaeb542ee703dd3,
  title = {Aeromagnetic map of the Bagdad area, Yavapai County, Arizona},
  author = {W.J. Dempsey and W.D. Fackler},
  year = {1963},
  doi = {10.3133/gp411},
  url = {https://pubs.usgs.gov/publication/gp411},
  note = {Source identifier: gp411}
}