@misc{indiciae624609ab6fc8,
  title = {Aeromagnetic and geologic map of northeastern Koochiching County, Minnesota},
  author = {J. L. Meuschke and K. G. Brooks and J. R. Henderson and G. M. Schwartz},
  year = {1957},
  doi = {10.3133/gp133},
  url = {https://pubs.usgs.gov/publication/gp133},
  note = {Source identifier: gp133}
}