@misc{indiciae178d5b71417a,
  title = {Bouguer gravity anomaly map, Baraga-Dead River basins area, northern Michigan},
  author = {J. S. Klasner},
  year = {1977},
  doi = {10.3133/ofr77746},
  url = {https://pubs.usgs.gov/publication/ofr77746},
  note = {Source identifier: ofr77746}
}