@misc{indiciae92883bc61ae6,
  title = {Total intensity aeromagnetic map of Washington County, Indiana},
  author = {John R. Henderson and J. L. Meuschke},
  year = {1951},
  doi = {10.3133/gp76},
  url = {https://pubs.usgs.gov/publication/gp76},
  note = {Source identifier: gp76}
}