@misc{indiciae4b1e11bbea26,
  title = {Aeromagnetic map of the Voluntown quadrangle, Connecticut and Rhode Island},
  author = {G. R. Boynton and C. W. Smith},
  year = {1965},
  doi = {10.3133/gp545},
  url = {https://pubs.usgs.gov/publication/gp545},
  note = {Source identifier: gp545}
}