@misc{indiciae4c92552ce65b,
  title = {Geologic map of the Wellfleet quadrangle, Barnstable County, Cape Cod, Massachusetts},
  author = {Robert N. Oldale},
  year = {1968},
  doi = {10.3133/gq750},
  url = {https://pubs.usgs.gov/publication/gq750},
  note = {Source identifier: gq750}
}