@misc{indiciae2a961720a5c7,
  title = {Aeromagnetic map of the Providence quadrangle, Providence and Kent Counties, Rhode Island},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1971},
  doi = {10.3133/gp790},
  url = {https://pubs.usgs.gov/publication/gp790},
  note = {Source identifier: gp790}
}