@misc{indiciae8a37f84c3783,
  title = {Digital and preliminary bedrock geologic map of the Townshend 7.5 x 15 minute quadrangle, Vermont},
  author = {Thomas R. Armstrong and Nicholas M. Ratcliffe},
  year = {1998},
  doi = {10.3133/ofr98335b},
  url = {https://pubs.usgs.gov/publication/ofr98335B},
  note = {Source identifier: ofr98335B}
}