@misc{indiciaede1a5ec194f5,
  title = {Magnetic anomaly near Bechtelsville, Pennsylvania},
  author = {H.E. Hawkes and H. Wedow},
  year = {1945},
  doi = {10.3133/ofr4570},
  url = {https://pubs.usgs.gov/publication/ofr4570},
  note = {Source identifier: ofr4570}
}