@misc{indiciaec0977451f479,
  title = {Aeromagnetic map of the Laredo quadrangle, Bearpaw Mountains, Montana},
  author = {J. R. Balsley and F. P. Gilbert and G. B. Mangan},
  year = {1957},
  doi = {10.3133/gp150},
  url = {https://pubs.usgs.gov/publication/gp150},
  note = {Source identifier: gp150}
}