@misc{indiciaed5d47cf0809e,
  title = {Aeromagnetic map of the Bristol quadrangle, Bristol, Kent, Newport and Providence Counties, Rhode Island},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1976},
  doi = {10.3133/ofr76224},
  url = {https://pubs.usgs.gov/publication/ofr76224},
  note = {Source identifier: ofr76224}
}