@misc{indiciae38b5dfc10c06,
  title = {Geologic interpretation of an aeromagnetic map of southern New England},
  author = {D. S. Harwood and Isidore Zietz},
  year = {1976},
  doi = {10.3133/gp906},
  url = {https://pubs.usgs.gov/publication/gp906},
  note = {Source identifier: gp906}
}