@misc{indiciae2aa0aefe3e15,
  title = {Aeromagnetic map of the Mt. Margaret area, Washington},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1981},
  doi = {10.3133/ofr81926},
  url = {https://pubs.usgs.gov/publication/ofr81926},
  note = {Source identifier: ofr81926}
}