@misc{indiciaea6da5ec5e946,
  title = {Surficial geologic map of the Durham quadrangle, Middlesex and New Haven Counties, Connecticut},
  author = {Howard E. Simpson},
  year = {1968},
  doi = {10.3133/gq756},
  url = {https://pubs.usgs.gov/publication/gq756},
  note = {Source identifier: gq756}
}