@misc{indiciaea75261ecd34b,
  title = {Surficial geology map of the Great Heath, Washington County, Maine},
  author = {Cornelia Clermont Cameron and Michael K. Mullen},
  year = {1983},
  doi = {10.3133/ofr834},
  url = {https://pubs.usgs.gov/publication/ofr834},
  note = {Source identifier: ofr834}
}