@misc{indiciaed9039ea9da19,
  title = {Interpretation of aeromagnetic anomalies in southeastern Missouri},
  author = {John Wing Allingham},
  year = {1976},
  doi = {10.3133/ofr76868},
  url = {https://pubs.usgs.gov/publication/ofr76868},
  note = {Source identifier: ofr76868}
}