@misc{indiciaef461c3bc5c07,
  title = {Geologic map of the Orleans quadrangle, Barnstable County, Cape Cod, Massachusetts},
  author = {Robert N. Oldale and Carl Koteff and Joseph H. Hartshorn},
  year = {1971},
  doi = {10.3133/gq931},
  url = {https://pubs.usgs.gov/publication/gq931},
  note = {Source identifier: gq931}
}