@misc{indiciaee9c5d9e3e8a5,
  title = {Contour map of the bedrock surface, Clinton Quadrangle, Connecticut},
  author = {F.P. Haeni},
  year = {1974},
  doi = {10.3133/mf553a},
  url = {https://pubs.usgs.gov/publication/mf553A},
  note = {Source identifier: mf553A}
}