@misc{indiciaec09b1295cd0f,
  title = {Aeromagnetic map of part of the Dennis quadrangle, Barnstable County, Massachusetts},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1971},
  doi = {10.3133/gp806},
  url = {https://pubs.usgs.gov/publication/gp806},
  note = {Source identifier: gp806}
}