@misc{indiciae4d019a67744b,
  title = {Aeromagnetic map of Cumberland and vicinity, Maryland and adjacent states},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1972},
  doi = {10.3133/gp842},
  url = {https://pubs.usgs.gov/publication/gp842},
  note = {Source identifier: gp842}
}