@misc{indiciae553f1bc07da0,
  title = {Bouguer gravity anomaly map of the United States (exclusive of Alaska and Hawaii)},
  author = {American Geophysical Union and U.S. Geological Survey},
  year = {1964},
  doi = {10.3133/70211056},
  url = {https://pubs.usgs.gov/publication/70211056},
  note = {Source identifier: 70211056}
}