@misc{indiciae2a00c922d8fc,
  title = {Aeromagnetic map of the Copper River basin, Alaska},
  author = {Gordon E. Andreasen and W.J. Dempsey and J. R. Henderson and F. P. Gilbert},
  year = {1958},
  doi = {10.3133/gp156},
  url = {https://pubs.usgs.gov/publication/gp156},
  note = {Source identifier: gp156}
}