@misc{indiciaec8336e27bb12,
  title = {Total intensity aeromagnetic map of central Marshall and western Pennington Counties, Minnesota},
  author = {J. L. Meuschke and Kenneth G. Books},
  year = {1954},
  doi = {10.3133/ofr54203},
  url = {https://pubs.usgs.gov/publication/ofr54203},
  note = {Source identifier: ofr54203}
}