@misc{indiciaeb5ab0b902a16,
  title = {Preliminary report on an experimental aeromagnetic survey in northwestern Indiana},
  author = {Henry Rochambeau Joesting and J. R. Henderson},
  year = {1948},
  doi = {10.3133/ofr4823},
  url = {https://pubs.usgs.gov/publication/ofr4823},
  note = {Source identifier: ofr4823}
}