@misc{indiciae19ae4563e37e,
  title = {Aeromagnetic map of southeastern Maryland},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey and Lockwood, Kessler \& Bartlett, Inc.},
  year = {1973},
  doi = {10.3133/ofr73296},
  url = {https://pubs.usgs.gov/publication/ofr73296},
  note = {Source identifier: ofr73296}
}