@misc{indiciae94e7b528ff89,
  title = {Total intensity aeromagnetic map of part of Becker County, Minnesota},
  author = {J. R. Balsley and M. E. Hill and J. L. Meuschke},
  year = {1951},
  doi = {10.3133/gp48},
  url = {https://pubs.usgs.gov/publication/gp48},
  note = {Source identifier: gp48}
}