@misc{indiciae0d953f780547,
  title = {Map showing resources of coarse aggregate, New Britain quadrangle, Connecticut},
  author = {William H. Langer},
  year = {1974},
  doi = {10.3133/mf523b},
  url = {https://pubs.usgs.gov/publication/mf523B},
  note = {Source identifier: mf523B}
}