@misc{indiciae0b13e7fb5420,
  title = {Summary operational report of a preliminary gravity survey of southeastern Alaska},
  author = {David F. Barnes},
  year = {1972},
  doi = {10.3133/ofr7219},
  url = {https://pubs.usgs.gov/publication/ofr7219},
  note = {Source identifier: ofr7219}
}