@misc{indiciae3b8f38deba4f,
  title = {Gravity map of the eastern part of southern Alaska},
  author = {David F. Barnes},
  year = {1977},
  doi = {10.3133/ofr77169c},
  url = {https://pubs.usgs.gov/publication/ofr77169C},
  note = {Source identifier: ofr77169C}
}