@misc{indiciae79295b20a460,
  title = {Preliminary bedrock geologic map of the Clinton quadrangle, Worcester County, Massachusetts},
  author = {John H. Peck},
  year = {1975},
  doi = {10.3133/ofr75658},
  url = {https://pubs.usgs.gov/publication/ofr75658},
  note = {Source identifier: ofr75658}
}