@misc{indiciaed04422d3c035,
  title = {Map showing unconsolidated materials, Monson quadrangle, Massachusetts-Connecticut},
  author = {J. D. Peper},
  year = {1976},
  doi = {10.3133/mf734a},
  url = {https://pubs.usgs.gov/publication/mf734A},
  note = {Source identifier: mf734A}
}